This Is The Vermeer BC700xl Wood Chipper Out Working Chipping Wood A Excellent Wood Chipper For It's Size. It Is A 6" Chipper With Self Feeder Also Has Smart Feed System, So It Will Stop The Feeder System For A Couple Of Seconds On Large Material As It Goes Through. So It Never Overloads The System Causing A Stall Or Plug Up Insuring Smooth Operation Hour After Hour.