[MATERIAL] This tire buffer wheel is made of superior tungsten steel material, strong and wear-resistant, not easy to aging, to ensure maximum strength and durability. [APPLICATION] This buffing wheel is good for tire repair grinding. It is fits for most of tire repair works and a good tool to help you to repair your vehicle tires. [EASY TO USE] The tire repair buffer wheel is easy to operate and use, it can work with other air pneumatic tools. Do not use discs on a tire that is not inflated and fastened to an axle or stand. size:42mm Material: Tungsten steel colour: As shown Package Contents: 1 x buffing wheel 1 x hexagonal linking rod 1 x round linking rod Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.