Universal for Cable Machine Gym Fitness Part Garage Door Durable Nylon % New design and high quality Features: Waterproof bearing pulley is for gym equipment and garage door pulley system Outer diameter: 10cm ; Hole inner diameter: 10mm/15mm (optional) It is made of durable plastic and high quality stock. Specification: Type: Pulley Material: Stainless steel + Nylon Applications: Cable machine, fitness Functions: Pulley, cable machine gym, part for fitness , durable, Nylon Dimensions: 10mm: approx. 10x1cm/3.94x0.39in 15mm: approx. 10x1mm 0.5cm/3.94x0.59in Color: Black Quantity: 1 Pc Note: 1. Please allow 0-1cm error due to manual measurement. make sure you don't mind before bidding. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 pc x pulley