Stability: The furniture casters contain 4 brakes, each with an individual brake for easy adjustment, once you press all the brakes, it will not move easily. Durable and Sturdy: The premium thermoplastic rubber (TPR) heavy duty casters combine the elasticity of rubber wheels with the strength and durability of metal wheels, very sturdy and durable. Roll with Ease: These heavy duty casters can rotate 360 degrees, allowing you to easily move your items in any direction you want. When you want to fix the casters in a place, just press the brakes and they will be fixed in 5 seconds. Wide Application: Swivel casters generally used for small projects and moving furniture, suitable for coffee tables, plant shelves, book shelves, shoe cabinets, toy boxes, etc. Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be color differences, please refer to the actual item received.