This 4-pack caster set features high-quality thermoplastic rubber construction that is resistant to rust and corrosion. The swivel casters have a load capacity of 1200 pounds, and two of them have brakes. The wheels roll smoothly and quietly, and the 360-degree rotation allows for easy movement of large items in any direction. The set is easy to install and comes with all necessary accessories. Suitable for use with trolleys, toolboxes, cabinets, furniture, workbenches, and benches, this caster set offers durability and stability for a wide range of applications.