5 1/2" FELLING WEDGE. THEY REPLACE PART NUMBER 23562. WEDGES ARE USED BY BEING INSERTED INTO THE TREE BEFORE THE FELLING CUT TO HELP GUIDE THE DIRECTION IN WHICH THE TREE WILL FALL BY LIFTING THE BASE TOWARDS THE OPPOSITE DIRECTION. THIS KEEPS EVERYONE SAFE AND GIVES YOU MORE CONTROL OVER YOUR WORK. THE SPIKES ON THE WEDGES HELP TO PROVIDE A BETTER HOLD WHICH CREATES MORE FORCE AND PRESSURE TO OVERCOME BACK FALL. THE WEDGES CAN TAKE A BEATING WITH THE TYPE OF MATERIAL THEY ARE MADE OF.