1.Material: The Swivel Threaded Stem Caster Wheels Made From Polyester and Steel, Non-Marking polyurethane type. Double base ball, quiet and no noise, suit for all kinds of floor types, won't disturb others when moving. 2.Dimension: Whole Height: 13.3cm/5.2 inches, Wheel Diameter: 7.5cm/3 inches, Wheel Thickness: 2.1 cm/0.83 inch, M12 Thread size: 1.2*3cm/0.47*1.2 inch （D*H）. 3.Brake Design: The brake locks both the wheel and the swivel bearing at the same time, which is essential for safety. The steel structures body is extremely hard wearing and resistant to dirt. 4.360° Rotation: 360 degree swivel top threaded stem makes turning the mating equipment possible, is good for transporting light furniture and displays quietly and safely. 5.Application:Perfect casters for equipment and furniture, including coffee table, seat, shelf, plant stands, bookshelves, shoe bins, toy bins, shopping carts, workbench, trolley, dolly or other heavy things., Weight: 3.24740911926 pounds, Manufacturer: Wefond