Description:_x000D_This is a steel tire changer mount demount duck head tool. With optimal tire change angle and smooth surface, it is a great tool for help you change tires fast and esily. There are 28mm & 30mm for your choice, directly replacement for the old one._x000D__x000D_Features:_x000D__x000D_Brand new mount demount duck head tool used for many tire changer machines. _x000D_The insert shape is designed according to the shape of the duck head and the edge of rim, easy to use. _x000D_With smooth surface to reduces friction, make the tire change more faster and efficient. _x000D_It prevents wheels from scratching and damaging when clamping wheels from inside clamps. _x000D_Made of high quality steel material, high strength and durable. _x000D__x000D_Specifications:_x000D_Material: Steel + Electroplating(surface)_x000D_Color: Silver_x000D_Installing Hole Diameter: 28mm/1.1", 30mm/1.2" (optional)_x000D_Overall Size: 190 x 100mm/7.5" x 4"_x000D_Package Weight: 732-758g_x000D__x000D_Package Included:_x000D_1 x Tire Changer Mount/Demount Head_x000D__x000D_Notes:_x000D_1. Please check our photos with measurements to make sure it fits your machines._x000D_2. It is easy to install, but professional installation is highly recommended. 1Brand new mount demount duck head tool used for many tire changer machines 2The insert shape is designed according to the shape of the duck head and the edge of rim, easy to use 3With smooth surface to reduces friction, make the tire change more faster and efficient 4It prevents wheels from scratching and damaging when clamping wheels from inside clamps 5Made of high quality steel material, high strength and durable