Steel wheels, strong and durable. Deep-cut, well-defined gear-like teeth provide greater penetration pressure and are suitable for scraping wax, oil, etc. coverings from rubber surfaces in contour lines. The handle is comfortable and easy to grip. A tire roller can help remove air from under the tire patch, ensuring adhesion and tightness. Made of metal material, high strength and durable. Comes with a stainless steel hex bar for most tire repair jobs. It can be used with the tire repair roller for quick grinding and cleaning before tire repair, which is easy to use and simple to operate. Made of rubber material, good sealing performance, not easy to wear or tear, strong and reliable, provide full protection for your tires. Tire patches have thickened layers of rubber that require the use of glue during the patching process. (Please note that this set does not contain glue.) Material: MetalandPlastic colour: BlackandSilver Package Contents: 1 x pinch roller 1 x grinding head 42mm/ 55mm 30 x film (10 pieces each) Only the above package content, other products are not included. Note: Light reflection 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.