The Waxman 3 in. heavy duty rubber swivel plate casters are perfect for use on desks, chairs, tables, stools, toolboxes and more. This caster features a 225 lb. load rating, steel roller bearings and double ball bearing raceways for easy movement and swiveling. Rubber casters are recommended for use on carpet, concrete, tile, and wood surfaces to meet a wide variety of needs. The plate mounted caster installs caster installs easily with 4 screws that are not included.