This mechanical pulley bearing features a 10mm bearing hole and is designed with a 32mm diameter roller for optimal performance. The robust construction ensures durability and efficient operation in mechanical setups. High-Quality Polyurethane Material: Constructed from premium rubber, this chain roller pulley block offers exceptional durability and a long service life. It's engineered to withstand rigorous use in both street bikes and off-road vehicles. Double Bearing Nylon Roller: Equipped with a rubber double bearing, this roller ensures smooth and reliable operation. The sliding conveyor wheel with a 635Z bearing enhances the functionality and extends the lifespan of the pulley system. Essential Sprocket Roller Slider: A crucial component for any guide wheel, this sprocket roller slider comes with heavy-duty bearings ready for immediate use. It helps maintain system's normal operation, ensuring reliability and performance. Universal Fit: Suitable for a wide range of vehicles, including off-road vehicles, street cars, motorcycles, and ATVs. This chain roller guide is designed to perfectly match your vehicle's chain, providing a seamless fit and superior functionality. Colour:Black Material:Rubber+Metal Package Contents: 10 * scroll wheels 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.