Features 1、Galvanized Alloy Steel: Made of galvanized alloy steel, our pulley is robust and sturdy, ensuring long lasting outdoor use with erosion and rust prevention. 2、Detachable Design for Easy Installation: The pulley is detachable, featuring a base with 9mm mounting holes for simple and convenient installation. 3、Enhanced Maneuverability: Equipped with internal bearings to reduce friction with the wheel, providing smoothly and agile movement for increased flexibility and efficiency. 4、Heavy Duty Load Capacity: With a robust construction and high weight bearing capacity, this pulley is capable of handling heavy loads with ease, making it a reliable choice for demanding applications. 5、Versatile Applications: U groove wheel pulley is ideal for electric doors, industrial carts, assembly fixtures, containers, shelving, and other rigging equipment and projects, offering versatility for various purposes. Specification Item Type: U Groove Wheel Pulley Material: Galvanized Alloy Steel Pulley Diameter: Approx. 38mm / 1.50in Load Capacity: Approx. 150kg / 330.7lb Mounting Hole Diameter: Approx. 9mm / 0.35in Package List 2 x Pulleys