Features: Experience effortless multidirectional movement with our 360 degree swivels casters, featuring =plastic construction for great performances. The heavy duty plastic wheels with reinforced bearings ensures smooth, quiet rolling while resisting corrosions and wear, great replacements. Designed for repair enthusiasts, facility managers, and homeowners seeking safe mobility solution for equipment, toolboxes, and furniture. Achieve noise frees maneuvering across multiple environments through precisions engineered ball bearings and not marking treads. Optimize workspaces efficiency in garages, libraries, or outdoor job sites with these tool frees installation. Specifications: Materials: Plastic Color: As The Picture Shows Styles: 4Pcs/8Pcs/12Pcs (Optional) Size: approx.31.8x35.6x25.4mm/1.25x1.40x0.99in Package Includes: 3 Kinds of Package(Optional) Package 1: 4Pcs Swivels Casters Package 2: 8Pcs Swivels Casters Package 3: 12Pcs Swivels Casters note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!