Feature:1. Nylon bearing pulley is made of high quality nylon, durable, wear resistant, waterproof, long service life.2. No friction spark, high performance, ensure easy movement.3. Nylon pulley is lightweight and easy to install at altitude.4. It is an accessory to fitness equipment and can be used for fitness equipment and garage door pulley systems.5. Suitable for health club, family fitness, business or private use, necessary fitness equipment accessories, easy to change.Specification:Condition: 100% Brand New Item Type: Nylon PulleyMaterial: Nylon+Iron CoreColor: As Pictures Shown Product Outer Diameter: Approx. 115mm/4.5in, Bore Inside Diameter: Approx. 10mm/0.4in, Bearing Thickness: Approx. 24mm/0.9in, Groove Depth: Approx. 13mm/0.5in, Groove Width: Approx. 13mm/0.5inWeight: Approx. 1945g/68.6oz Package List:10 x115mm Pulley Note:1. Manual measurement, please allow 1‑3mm error, thank you!2. The picture may not reflect the actual color of the project due to the differences between different displays.