Feature:1. The bearing pulley wheel is made of high quality nylon, which makes it durable, wear-resistant and waterproof.2. It also has along service life, there will be no friction spark, a high safety performance and stability.3. Nylon pulley is light and easy to install at altitude, accessory for fitness equipment and can also be used for garage door pulley systems.4. Suitable for fitness club, family fitness, business or one own use, necessary fitness equipment accessories, easy to change.5. The universal pulley wheel is easy to install and detach, a necessity replacement for fitness equipment.Specification:Condition: 100% Brand NewItem Type: Bearing Pulley WheelMaterial: NylonColor: As Picture ShownWheel Outer Diameter: Approx. 100mm/3.9inWheel Inner Diameter: Approx. 10mm/0.4inBearing Thickness: Approx. 24mm/0.9inGroove Depth: Approx. 10mm/0.4inGroove Width: Approx. 5mm/0.2inWeight: Approx. 1090.0g/38.4oz Package List:10 x 100MM Bearing Pulley Wheel