The caster wheels in my video are from the IKEA BLYSKÄR chair frame which I purchased as part of the LOBERGET chair.
Check out Commodore Cave’s “Quick and Easy Fix for Office Chair Auto Locking Wheels from Ikea” ( • Quick and Easy Fix for... ) which was the inspiration for this video, and explains the horrors of brakeless office chairs so that you don’t embark on this project unaware of the dangers.
X-ACTO and Excel make similar blades to the one I used which can be used in a standard hobby knife handle. You can check them out here: widgetsupply.com/product/shg3...
I hope this was useful and thanks for watching.