Feature:1. Suitable for round pipe with diameter under 17mm / 0.7in, 150kg / 330.7lb(approx.) of the load bearing capacity.2. Suitable for sliding doors, driveway doors, dog doors, widely applications and practical replacement accessory.3. Applicable for moving door, wire rope guide wheel, tower crane accessories, widely used in various lifting equipment.4. The Ugrooves wheel slides more evenly, easy and convenient for installation and perfect fitting.5. Made of high quality 45# steel material, high strength and anticorrosion, not easy to deform and damage.Specification:Item Type: Grooves WheelMaterial: 45# Steel Load Bearing: 150kg / 330.7lb(approx.)Bracket Thickness: Approx. 2.5mm / 0.1inScope of Application: Moving door, wire rope guide wheel, tower crane accessories, widely used in various lifting equipment.Package List:1 x Grooves WheelNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.