Features Designed to hang heavy objects to lighten loads. Easy operation and maintenance, high work efficiency. Smooth operation, low wear and good bearing capacity. High-strength bearing wheel, solid structure, durable and reliable. Specializing in the manufacture of bearing wheels, which are heat treated and have high reliability. Features: -Designed to hang heavy objects to lighten loads. -Easy operation and maintenance, high work efficiency. -Smooth operation, low wear and good bearing capacity. -High-strength bearing wheel, solid structure, durable and reliable. -Specializing in the manufacture of bearing wheels, which are heat treated and have high reliability. Specification: Condition: 100% brand new Diameter: 28mm / 1.1in, 32mm / 1.3in, 48mm / 1.9in, 56mm / 2.2in (Optional) Service guarantee ：100% brand new product, all refund if unsatisfied If you have any questions, please contact our professional customer service team. Package List