Description: - 【Sturdy Material】: Fitness Bearing Pulley is made of quality aluminum alloy, sturdy and wear resistant - 【Fitness Wheel Replacement】: Pulley Wheel is great replacements for gym equipment and garage door pulley systems, easy to replace - 【Universal Bearing Pulley Wheel】: Universal Pulley Wheel hole inner diameter: 10 mm / 0.39 inch, suitable for most gym equipment, home gym, commercial, or personal use - 【Features】: Silent bearing pulley wheel, low noise, stable performance, and high load capacity. Small friction to ensure easy movement - 【Easy to Install】: Gym Bearing Pulley Wheel is lightweight, and it is easy to install Specification: - Material: Aluminum Alloy Size Chart: Outer Diameter: 4.8cm/1.89inch Thickness: 2cm/0.79inch Inner Diameter: 0.8cm/0.31inch U Groove Diameter: 1cm/0.39inch Depth: 1.5cm/0.59inch Package Includes: 1pcs Fitness Bearing Pulley Wheel Note: Please allow slightly errors due to manual measurement and different monitors.