Features: New and high quality The pulley has a lower coefficient of friction, reduced vibrations, and lower noise. Our waterproof bearing pulley is suitable for fitness equipment and garage door roller disc systems. The pulley is made of high-quality, wear-resistant PA material and is designed for long-term use. It is a universal pulley compatible with most fitness equipment and serves as an excellent replacement roller. Service: If you are not satisfied with our product or have any questions, please . Specifications: Material: PA Color: As shown in the picture Size Options: 50/60/70/90/100/110/120/160 (For more size details, please refer to the photo) Package Includes: 1 x Bearing Pulley Note: Please allow 1–2 cm error due to manual measurement. Due to differences in monitor displays, the picture may not reflect the actual color of the item.