Polisport chain sliding piece is a perfect replica, produced with our high standards to increase the bearing life of the part and to give it additional resistance. The part is produced in TPU (Thermoplastic polyurethane) to better withstand the friction and abrasion from your bike's chain. Why Polisport chain sliding parts are the best choice for your Dirt Bike? Injection-molded, quality plastic components with a perfect OEM fit. Exact replica of stock OEM plastic components but stronger Inexpensive alternative to OEM replacement parts. Stock color match Impact and abrasion resistant Increase the bearing life of the part Produced in TPU (Thermoplastic polyurethane) Tougher than stock chain sliding pieces Packaged in a printed plastic bag