Upgrade your hand truck or dolly with our caster wheels. These wheels are engineered for heavy-duty performance, providing exceptional load-bearing capacity. The quiet design ensures smooth and silent operation, while the swivel feature allows for effortless direction changes, making your tasks and less strenuous. Features - Color: Black -Material:Nylon - Size: 3.80X3.80X2.50cm/1.49X1.49X0.98in -The sturdy construction of this product ensures it can handle weights, making it an for transporting large and heavy items with ease. -Designed with environments in mind, the quiet wheels provide a smooth and silent operation, for libraries, hospitals, and other . -Featuring a flexible swivel mechanism, this product allows for effortless maneuvering in tight and confined areas, enhancing its usability in various settings. -These hand truck casters are highly versatile and can be used effectively in warehouses, factories, and even residential homes for various tasks. -This multifunctional product is ideal for a wide range of applications, including moving furniture, organizing storage , and other heavy-duty tasks. Package list: 4 with screws