It is made of tuff steel and has a built in roller to guide the edge of the wheel your are mounting a tire on. See below for a full list of all tire machines this head fits. Also view the pictures for tapered hole explanation.
Tire Changer Metal Steel Mount Demount Head Fits On Coats ®* 182788 8182753
RANGER Tire Changer STAINLESS STEEL METAL Mount Demount Head 532736 5400201
Tyre Tire Changer stainless steel metal Bird Head Mount Demount Duck Head 30mm
Tire Changer Stainless Steel Mount Demount Duck Head-Hunter Ranger
1PC 28mm Forward Tire Changer Stainless Steel Mount Demount Duck Head Tool
Tire Changer Machine Steel Frame Air Control Valve Changing Machine 4 Pedal