Features: Chain roller pulley slider complete with heavy duty bearings, ready to use. This chain pulley roller slider is essential for wheel guidance, helping the drive system function properly. Made from high-quality materials for strength and long-lasting durability. Available in multiple color options to match your vehicle chain. Compatible with most dirt pit bikes, street bikes, motorcycles, ATVs, and off-road vehicles.Specification: Material: Metal, Plastic Color: Red, Orange, Blue, Green (available for 8mm), Red, Orange, Blue, Green, Black (available for 10mm) Inner Diameter: 8mm, 10mm (optional) Total Size: Approx. 32 x 28mm / 1.26 x 1.1 inches Package Weight: 40-45g Package Included: 1 x Chain Pulley Roller Slider Note: 1. Easy to install; professional installation is recommended. 2. Monitor settings may vary, so colors displayed in photos may differ slightly from the actual product. Please refer to the physical item for accurate color. 3. Please allow 01 inch variation due to manual measurement. Thank you for your understanding.