Complete Guide into Belay Devices - Differences and Efficient Usage | Ep.6

Спорт

Understand the differences between all Belaying Devices and Learn how to use any of them Safely and Efficiently.
00:00 Intro
02:07 Tube Style Devices
06:00 Assisted Belay Devices
07:41 Assisted Tubers
09:41 Cam Assisted
10:37 What happens if Belay device gets Trapped in the first bolt?
13:16 Proper way to Attach a Belay Device
16:58 How to go Hands Free / Tie Off?
18:35 Slip Slap Slide - WRONG
19:05 Taking Slack
19:41 Hand over Hand / V to the knee 1,2,3
21:26 PBUS - Pull Break Under Slide
22:08 Tunel Technique
25:32 Mistakes of Taking Slack
26:26 Giving Slack
27:54 Lowering
28:38 Catching a Fall
All experiments showed were done with 9.0mm Mammut Sender Rope - Rope thickness and choice of carabiners has a big effect on results of such experiments, so take my findings as a limited case scenario.
If you are getting value out of my videos and wanna feel good - consider supporting me: hardiseasy.com
Because that makes a big difference and is the main reason that allows me do this project!
Deep Thanks!
Ben
♫ Music for my videos comes from
www.epidemicsound.com/referra...

Пікірлер: 558

  • @maximedelmas
    @maximedelmas2 жыл бұрын

    You don't imagine how useful it is for a boulderer like me trying to get into sport climbing! I have taken lessons with a qualified instructor first, but these video are a huge plus to my climbing knowledge.

  • @HardIsEasy

    @HardIsEasy

    2 жыл бұрын

    Amazing! Welcome to climbing more :D

  • @ivansanchezperez5602

    @ivansanchezperez5602

    2 жыл бұрын

    Hard is easy with @@HardIsEasy , bro.

  • @da5ke

    @da5ke

    2 жыл бұрын

    Try to get lessons

  • @bjrnvogelaar7497

    @bjrnvogelaar7497

    2 жыл бұрын

    Make sure to take a course with a qualified instructor first. As useful as these videos are he can’t check if you are actually doing it correctly.

  • @JohnnyWortel

    @JohnnyWortel

    2 жыл бұрын

    @@bjrnvogelaar7497 100% this. Always take a quick belaying course. Hard is Easy is great for if you already know some stuff but its not a replacement for real-life guidance from a certified instructor

  • @HardIsEasy
    @HardIsEasy2 жыл бұрын

    Forgot to mention that force measurements in the beginning were done just to demonstrate that you can't hold much if your brake hand is up. They are NOT accurate due to errors in measurement devices and also heavily depends on Rope diameter, stiffness, treatments, belay device used etc... Rope used: 9.0mm Mammut Sender DRY Also special thanks to everyone who provided feedback on Version 1 of this video many months ago... that resulted into much deeper research of this topic - that's why it took me so long to come up with improved version 2 :D

  • @mtmcclos

    @mtmcclos

    2 жыл бұрын

    I thought the first version of this video was well done, but this revised version is fantastic! I’m very impressed with the amount of information you are able to squeeze into these and appreciate the work that goes into it!

  • @hannesbackerling8215

    @hannesbackerling8215

    2 жыл бұрын

    This 2 version was spot on! Regarding grigri and trad. As a trad climber who frequently uses the grigri, it would be really interesting to see how much higher the force is on the gear when belaying with a grigri vs tube-device. Huge thanks for all the time and effort you have put in your channel, it is truly making climbing safer and educating people!

  • @HardIsEasy

    @HardIsEasy

    2 жыл бұрын

    @@hannesbackerling8215 I've actually tested that a bit, the difference is very small to none if you have space to move or jump with Assisted devices, and ofc know how to do that :D On hanging belay it might be different story...

  • @florianm.faessler7732

    @florianm.faessler7732

    2 жыл бұрын

    You make awesome videos! I attended a lot of classes and am still learning new things and refreshing old things. Regarding the correct carabiner for belaying devices there are certain carabiners that prevent auto-tubers from working properly, which may be quiet dangerous and maybe worth mentioning. E.g. DMM belay master combined with the MegaJul.

  • @Some.sarcastic.a-hole

    @Some.sarcastic.a-hole

    2 жыл бұрын

    In reference to the demo @ 3:00 I recommend that you always show the backup belayer in a camera shot both for peace of mind for your viewers and to reinforce the safety themes of your most excellent channel.

  • @stagenaim
    @stagenaim2 жыл бұрын

    Actually, while using a grigri, if you point the gate the other direction (right) while loading/unloading the rope, you can further decrease the risk of dropping, as the nose always stays hooked in. As a right-handed person, this took a slight bit of getting used to, but now it is very smooth and I'm glad to have this technique when up on a wall

  • @philippfinke458
    @philippfinke4582 жыл бұрын

    According to the German alpine association (DAV) the currently accepted technique to take slack is the tunneling one. This is also how you learn it in climbing courses nowadays.

  • @psylimusic

    @psylimusic

    9 ай бұрын

    Great to hear that at other parts of the EU they accept it, because in Hungary (Budapest) at some places they don't allow to use that technique.

  • @StalenStefan
    @StalenStefan Жыл бұрын

    That knot tying at 17:22 was so incredibly smooth!

  • @HardIsEasy

    @HardIsEasy

    Жыл бұрын

    Check the episode on Knots ;) You'll love it :)

  • @simonrobbins815
    @simonrobbins8152 жыл бұрын

    There's another important use of tubular devices: retrievable abseil. Where the rope is threaded through or around an anchor at the top of a route (e.g. sport anchors or a tree) and you abseil off both strands. Some assisted tubulars (e.g. Edelrid devices) also do this.

  • @brainscrub7976

    @brainscrub7976

    2 жыл бұрын

    If by retrievable abseil you mean that the rope can be pulled down once you reach the ground, that is also possible with grigris and other single slot devices. Tie a knot with a bight on the rope near the middle part, and either put the other strand of the rope around the tree and through the bight, or clip a locking carabiner through the bight and around the other strand of the rope. Descend with the belay device on the strand of rope that goes through the bight/carabiner, and then pull the other strand to get the rope down.

  • @ptf3631
    @ptf36312 жыл бұрын

    The quality of this content is incredible! I learn so much every single video, genuinely thank you!

  • @housebrokecarpenter6584
    @housebrokecarpenter6584 Жыл бұрын

    I don’t even climb and this guy makes it interesting.. he could be talking about anything and I’d watch… great energy !! You got it

  • @static_motion
    @static_motion2 жыл бұрын

    Man just a few days ago I was looking through your channel to see if you'd already made a video about different belay devices, and now here it is! You read my mind. Thanks for all the great education about climbing safety!

  • @LoveAndClimbing
    @LoveAndClimbing2 жыл бұрын

    The proper way to attach a belay device section at 13:20 is also important because it helps make sure that you attach it to your harness correctly every time. The folks who try to manipulate carabiner, device, and rope hanging out in space in front of them are also the folks who swap the climber and belay strands in the device most often, for example.

  • @doesstuffoutside
    @doesstuffoutside9 ай бұрын

    Super helpful. I learned Slip Slap Slide from some old dudes teaching a community college course back in 2004, and I used it for a long time with tube style devices. Only when I went back to school and took another climbing class in 2015 did someone teach me PBUS. The instructor wasn't that put off by Slip Slap Slide, he'd seen it used for a long time, but he asked me to use PBUS because it was "better". I didn't really get a satisfactory answer on why it was better until now. Thanks!

  • @lancer8566
    @lancer85662 жыл бұрын

    Your videos are the most thorough, clear, and concise on all of KZread. Well done and much appreciated 👍

  • @iammichaelmyers
    @iammichaelmyers Жыл бұрын

    I would trust my life climbing with you. Excellent video and education.

  • @joeyebeling7681
    @joeyebeling76812 жыл бұрын

    I'm glad that you explained hand-over-hand and covered the things to be careful of instead of just saying that it should be avoided. In three years of climbing everyone just says "don't do that" and moves on

  • @fabian996
    @fabian9962 жыл бұрын

    Thanks for this great video! One thing (I might have missed in the video): If you need to take in a lot of slack fast, just take a few steps back. That is if possible, doesn't apply to multi-pitch for obvious reasons. Walking back two meters might take in a lot more slack than you're able to take in otherwise!

  • @johnliungman1333

    @johnliungman1333

    2 жыл бұрын

    Yup, great trick! Works both ways too: move forward to give that extra foot of slack! 👍

  • @kd5nrh

    @kd5nrh

    Жыл бұрын

    Backing up on a multi will take up slack fast too. It's just a bit harder to give the slack back afterward.

  • @switchfootforever24
    @switchfootforever242 жыл бұрын

    Thank you for all the time and effort you are putting into the belay masterclass series!

  • @joemignano
    @joemignano2 жыл бұрын

    Your Belay Masterclass videos have been some of the clearest, thorough, and easy to follow I've seen on the topics you've covered so far. Thank you so much for making these! I imagine you might already be planning this, but I really hope you do a masterclass video on anchor building-covering the various sport anchor situations that climbers encounter when building a top rope anchor (just two bolts, connected with a chain, parallel vs diagonally aligned bolts, what if there's a rappel ring, etc.). Keep up the amazing work!

  • @basbijlsma6404
    @basbijlsma64042 жыл бұрын

    Sometimes i use another method to take slack in a toprope scenario: My brake hand stays on the rope, my other hand grabs the rope under the belaying device and then my brake hand slides to my other hand. I'm a climbing instructor in the Netherlands and i recommend your channel to all my students! Thanks for taking the time to make these video's!

  • @Ninonator3

    @Ninonator3

    2 жыл бұрын

    This is also the technique I got taught in the Netherlands and still use.

  • @10zege

    @10zege

    2 жыл бұрын

    This is technique what you learn in Finland!

  • @deu844

    @deu844

    2 жыл бұрын

    Here is a video about the belay technique that is being taught (also) in Finland (kzread.info/dash/bejne/n6mKqLRqd9yof9Y.html). Wondering why it is not more commonly used elsewhere. Was hoping this technique would be represented in Ben's video. Thanks for the great video anyways!

  • @deu844

    @deu844

    2 жыл бұрын

    Here is a video about the belay technique that is being taught (also) in Finland (kzread.info/dash/bejne/n6mKqLRqd9yof9Y.html). Wondering why it is not more commonly used elsewhere. Was hoping this technique would be represented in Ben's video. Thanks for the great video anyways!

  • @floewqua

    @floewqua

    2 жыл бұрын

    Welke hal?

  • @TrueGoat-Bahhh
    @TrueGoat-Bahhh2 жыл бұрын

    Thanks for doing these man, more people will be able to climb safely because you did this.

  • @2u_zheng
    @2u_zheng Жыл бұрын

    Your videos worth a lot more than all the climbing courses I’ve taken… huge thank and I hope this channel will continue!

  • @francoismenard5084
    @francoismenard50842 жыл бұрын

    Huge video!!! really interesting even for experiment climber... I didn't know the PBUS technic ! thanks a lot for this masterclass 👍

  • @bikespike4150
    @bikespike41507 ай бұрын

    I can really see these videos being used as supplemental material in climbing courses. Fantastic video, thank you.

  • @morphsticles
    @morphsticles2 жыл бұрын

    Always stoked to see you put out a new video. Much appreciated.

  • @darreno9874
    @darreno98742 жыл бұрын

    I've climbed for years and still learn so much from your videos. Thank you. God bless

  • @MissLozaBee
    @MissLozaBee Жыл бұрын

    I'm currently working with a couple of friends to teach them lead and send your videos to them to watch to get an even better understanding so thank you for all your work!

  • @TheMatty475
    @TheMatty475 Жыл бұрын

    These videos are incredible. Really helpful for lead newbies. Keep em coming Ben!

  • @jacquesderiban557
    @jacquesderiban5572 жыл бұрын

    Very well explained.(With a good english accent understandable by a frenchy like me !). Good job. Thank you very much.

  • @angelvaldez7616
    @angelvaldez76162 жыл бұрын

    Yes please! A comparison video would greatly add immense value to the classes :D

  • @JonnoDuck
    @JonnoDuck2 жыл бұрын

    Glad to see this episode back up. Great information.

  • @trentd.9492
    @trentd.94926 ай бұрын

    Dude. Your videos are SO helpful and digestible. You're killing it!

  • @SushantYogi
    @SushantYogi9 ай бұрын

    Love this series! So well made and informative. I used this series as a supplement when I was learning top-rope climbing!

  • @janzapal6238
    @janzapal6238 Жыл бұрын

    Great job on the HoH, PBUS, Tunnel. Having climbed for decades and in many parts of the world, it's always annoying when people tell me I belay wrong, while I am doing things by the book. It's good to know, and the discussion here confirms, this is a rabbit hole and people will often thing the method they been taught is THE method. I would be interested in learning more about the (dis)advantages of different acceptable methods.

  • @bujuenton84
    @bujuenton842 жыл бұрын

    That was a really in depth video. Liked it a lot and share it with beginners and advanced belayers as well. Thanks a lot for your work, thats worth it.

  • @Lollilol16
    @Lollilol162 жыл бұрын

    Well done for this remaster of the belay device video 👍🏼 it’s much more thorough and it shows you’ve done lots of research. Kudos brother 💕

  • @QuackLoud
    @QuackLoud Жыл бұрын

    Not only are your videos very informative for me, but they are entertaining also!! Keep them coming.

  • @jonathanlaw6261
    @jonathanlaw6261 Жыл бұрын

    Been indoor climbing for 10+ years. Best video and explaination technique for belaying.. subbed.

  • @hen9trout
    @hen9trout Жыл бұрын

    This is an absolutely excellent series of videos. Very enlightening - many thanks.

  • @_The_Moustash_
    @_The_Moustash_ Жыл бұрын

    I would definitely appreciate a buyer's guide, especially as a starting climber who mostly wants to get practicing indoors as safely as possible

  • @MrHassancehef
    @MrHassancehef2 жыл бұрын

    26:05 the reason is also that some people (a lot in germany for example) learnt to belay with munter hitch, where this position provide the best friction

  • @user-qn9ku2fl2b

    @user-qn9ku2fl2b

    2 жыл бұрын

    just f**k munter hitch

  • @toncsiacs3032
    @toncsiacs30322 жыл бұрын

    I was wondering when the belaying video was going to be back up! Excellent!! Thx.

  • @jjdjustforfun
    @jjdjustforfun2 жыл бұрын

    This channel has been so useful me I'm stoked to be able to learn extra on top of my other training without having to pay an arm and a leg

  • @mongoose404
    @mongoose4042 жыл бұрын

    I searched for the episode you mentioned at 24:14 and didn't found it in your videos but after that I've realized that the current episode is really fresh, only 3 days old. Looking forward for the next episode with that awesome looking belayers, or belayerins 🤔

  • @TheK7aloha
    @TheK7aloha7 ай бұрын

    I taught climbing 20yrs ago and learned how to climb in Southern Cali from classic old schoolers like Bob Kamps. You did an EXCELLENT job in this video! Wonderful refresher for me! I agree with everything you said brother! Aloha from Colorado!

  • @benh9781
    @benh97812 жыл бұрын

    This is quickly becoming the preeminent guide to climbing! Thanks for all the hard work!

  • @burrotails
    @burrotails11 ай бұрын

    I started working at a sport climbing gym a couple months ago, these vids have been a great resource for helping out our members!

  • @XAVR_
    @XAVR_2 жыл бұрын

    Been using a Black Diamond ATC Pilot for the last year or so and I absolutely love it.

  • @bumckfszful
    @bumckfszful2 жыл бұрын

    Thank you for this amazing masterclass!

  • @tjster123
    @tjster1232 жыл бұрын

    Been waiting for this!!!

  • @jimbojet8728
    @jimbojet8728 Жыл бұрын

    All makes good sense,thank you for the effort you’ve obviously put in.

  • @BG-il2ym
    @BG-il2ym Жыл бұрын

    Your videos always teach me more than I expected. So many useful tips. Thanks very much 😀 👍

  • @walterwadlow9438
    @walterwadlow94382 жыл бұрын

    Your videos are so clear, so thorough, and so entertaining! I just had to support you on Patreon!

  • @HardIsEasy

    @HardIsEasy

    2 жыл бұрын

    Dude thank you so much!

  • @hankmishima4798
    @hankmishima4798 Жыл бұрын

    I appreciate your videos with the detailed risks that need to be considered and mitigated. Your style is entertaining and of real value to a newly like myself. Thanks.

  • @HardIsEasy

    @HardIsEasy

    Жыл бұрын

    I appreciate that!

  • @smuir6104
    @smuir61042 жыл бұрын

    I love these videos. seriously, you explain the why that my mechanical mind craves.

  • @Nicholas-cm6rx
    @Nicholas-cm6rx2 жыл бұрын

    Amazing video as always, I'm used several of the devices and still learned a lot!

  • @daderef
    @daderef2 жыл бұрын

    I was waiting for this episode!

  • @ricardodelvalle8291
    @ricardodelvalle8291 Жыл бұрын

    Thank you for making awesome educational content and being such a great teacher!

  • @danielsigursson8512
    @danielsigursson85122 жыл бұрын

    Thank you so much for yet another amazingly informational video! Will recommend to all my climbing buddies.

  • @iamthekwan
    @iamthekwan Жыл бұрын

    Dude, that was an amazing video. I didn't think I would watch everything but I did - and as a beginner climber, I thank you for the ton of lessons learnt. Subbed, obv.

  • @benromney9279
    @benromney92792 жыл бұрын

    Thank you for making videos. You are an excellent teacher. Keep it up!

  • @johngilbert974
    @johngilbert9742 жыл бұрын

    Several gems of info in this video - even for experienced climbers !

  • @alexambro4998
    @alexambro4998 Жыл бұрын

    I would definitively love an in depth and objective review of the benefits and drawbacks of the various devices

  • @xxrgxxcasco
    @xxrgxxcasco2 жыл бұрын

    Man, great video! Turned the bell on for the first time! Can't wait fot the belay device comparison (interested in the assisted tubular devices primarily due to being left handed) and the social experiment!

  • @marekgumienny5813
    @marekgumienny58132 жыл бұрын

    It is nice to find all this in one place. Thanks! I think a comparison of auto tubers with regards to rope drag etc would be very useful to many beginners trying to pick their first / second device. For me Jul 2 wins hands down for top rope and lead, while I am still trying to get to like giga.

  • @Guerllamo7
    @Guerllamo72 жыл бұрын

    Your videos are very engaging and informative. Thank you.

  • @treblebass8049
    @treblebass8049 Жыл бұрын

    That was awesome, thanks for taking the time. I love this kind of stuff.

  • @Skoxe
    @Skoxe2 жыл бұрын

    Would absolutely like to see a video of a breakdown of the pros and cons of different devices :)

  • @timsoft3
    @timsoft3 Жыл бұрын

    interesting, thanks for the info. When I learned belaying, there were only figure of eights, and stitchplates. It's interesting to see all the newer equipment. I learned hand-over-hand, so it is nice to see it is still used.

  • @sniperwales
    @sniperwales2 жыл бұрын

    He's back! 👍🏻

  • @oliver4260
    @oliver4260 Жыл бұрын

    Fabulous as always

  • @TomasOxf
    @TomasOxf2 жыл бұрын

    Excellent work, again!

  • @markzieber8536
    @markzieber85362 жыл бұрын

    Excellent videos! Super informative with a bit of humour thrown in. I just subscribed

  • @eljjtp
    @eljjtp Жыл бұрын

    best video I have seen so far. Thank you

  • @timystyles5980
    @timystyles5980 Жыл бұрын

    Dude! The sound affect for #2 had me rolling throughout the entire video.

  • @wolverinekut
    @wolverinekut2 жыл бұрын

    Wow 😎welcome back 🤙🏻 thank you for the information

  • @ottard
    @ottard2 жыл бұрын

    Another great video!

  • @TJP13088
    @TJP13088 Жыл бұрын

    One thing I wish I knew before I bought my ATC, is the difference between the regular and guide versions. Ability to indirect belay your climbing partner during multi-pitch is well worth the extra cost of the guide, but at this point, I'm not sure I want to rebuy it. Edit: BTW, thank you for these videos. They are excellent! You have done a great service to the climbing community with these.

  • @noiadrac
    @noiadrac2 жыл бұрын

    That is a great video! Very well explained,, thorough but not boring at all, and useful. It must have taken quite some work to make it. I subscribed inmediately. Thank you so much!

  • @HardIsEasy

    @HardIsEasy

    2 жыл бұрын

    Glad you enjoyed it!

  • @leoscotton7575
    @leoscotton75752 жыл бұрын

    Really informative and well made video. 👍

  • @luciaarin6308
    @luciaarin63082 жыл бұрын

    very interesting and useful material, thanks!

  • @djhscorp
    @djhscorp Жыл бұрын

    Your instruction videos are the best, thanks for sharing.😀

  • @davidmichelier3196
    @davidmichelier3196 Жыл бұрын

    hello, your episodes are very clear, I often suggest them to my students, if I may, the systematic use of belaying gloves changes lives and can save some...

  • @stocker3529
    @stocker3529 Жыл бұрын

    thanks for the masterclass, awesome content!

  • @NightSovereign
    @NightSovereign6 ай бұрын

    thank you so much for this. I've been climbing in the gym with my university group with a teacher, but I had no idea how much of the information I am missing out

  • @elijahthegentle4395
    @elijahthegentle43952 жыл бұрын

    I’m so thankful for you! Your work is great and soo helpful to me. I learn so much watching your content. I’m sorry I’m not at a place to give you money but I’m thankful for you putting it on KZread. So I alway give you a like!

  • @ozzieenkees
    @ozzieenkees7 ай бұрын

    Once again a great video! There is another unofficial belaying techniek that experienced climbers use. Take slack, lock, move slack hand below belaying device to become the new locking hand and the old locking hand becomes the slank hand. You can belay really quickly without ever unlocking and reversing taking and giving slack halfway through is easy natural and safe.

  • @the.Aruarian
    @the.Aruarian2 жыл бұрын

    Thanks for these’s videos, the content is super helpful. I’d deffo be down for a device comparison.

  • @md.moinulislam9467
    @md.moinulislam9467 Жыл бұрын

    Very good and useful video for climbing and emergency survival situations.....!

  • @user-we8zo9ue9o
    @user-we8zo9ue9o2 жыл бұрын

    Спасибо большое, очень полезное видео. Всё по полочкам разложили.

  • @comelanda2472
    @comelanda24722 жыл бұрын

    everything that needed to be answered and more! thx :)

  • @aries_9130
    @aries_91302 жыл бұрын

    Great video! Really enjoyed it.

  • @Nerazzurri87
    @Nerazzurri872 жыл бұрын

    Awesome video once again.

  • @bechelliz
    @bechelliz2 жыл бұрын

    Great content as always! Very informative 🤓. Looking forward for a 'masterclass' into the dark art of roped solo... =)

  • @Felix_yes
    @Felix_yes2 жыл бұрын

    Great Video! One important "device" you missed is the munter hitch/hms. When you talked about dropping your device on a multipitch I was sure you were going to say something like: "If you drop your device, here's what's going to save your ass."

  • @cameronlatulippe7004
    @cameronlatulippe7004 Жыл бұрын

    Your awesome man! Really appreciate all the great info and you taking the time to educate all of us noobies….for free 🤯. Your a great human lol This series just got you another subscriber.

  • @piterschaar4247
    @piterschaar42472 жыл бұрын

    Vielen Dank für ein Video ohne nervige Musik. Das ist nicht selbstverständlich heutzutage.

  • @Jonghos
    @Jonghos2 жыл бұрын

    Thank you soooooo much for making this amazing video!!!

  • @theworldinwords-andrzejmaj7111
    @theworldinwords-andrzejmaj7111 Жыл бұрын

    Excellent guide!

  • @sithpawel
    @sithpawel2 жыл бұрын

    such comparision would be really cool since it looks like You have some experience with more then one/two devices.

  • @matiastutezhang
    @matiastutezhang2 жыл бұрын

    Finally this ep is back

  • @haveawonderfulday279
    @haveawonderfulday2792 жыл бұрын

    Thank you for this video. I agree with most things you said and showed in this video. In our climbing gym only assisted devices are allowed and we therefore teach the tunneling method combined with the PBUS technique (if at one point there is too much lack to take in comfortably with the first technique). The thing I criticize is how far up you take your break hand while belaying. It's not necessarry and makes it more dangerous. If you push the upper rope to the front instead of pulling it down you can easily pull it out to the front (both of the ropes parallel). This even works with assisted belaying devices. As well as reversed for giving out slack with assisted belaying devices. If you pull the rope out to the front, instead of up they don't lock (but they still would if the climber fell in this moment, because the break hand always stays low enough). You didn't mention the Giga Juul which I love for multipitch climbing as it allows me to use it as an assisted device for lead climbing and switch to a normal tuber to minimize friction when belaying from above or when rappelling. And in my opinion it's absulutely necessery to know how to belay with a knot (I don't know how this is called in english...) when one goes multipitch climbing (for emergencies). Much love from a climbing instructor from Swizerland! I always recommend your videos to my students :)

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