Features: - Brand new and high quality - Made of high quality material, durable - High Quality Material: Our trolley casters are made of plastic and metal. Sturdy and durable, not easy to rust and wear-resistant. Perfect for small heavy duty casters for DIY projects - Moving Stability and Quiet: These furniture moving wheels can move smoothly without marks. Casters and wheels for moving heavy loads won't damage your wood floors. Move quietly, you won't hear squeaks anymore - Strong bearing capacity: max. Load per wheel: 10KG/22lb, total weight 120kg/264lbs. - Wide use: Strict use in homes, warehouses, shops, restaurants, schools and hospitals. Our wheels really help to move it without causing vibration, Specification: - Dimensions: Heavy Duty Caster Dimensions: 25mm x 13mm/ 1" x 0.51" (D*W). - Wheel height: 3.5cm/1.37in. - Top plate dimensions: 37mm x 32mm/1.46in x 1.25in. - Hole diameter: 4 mm/0.16 inches. - Screw size: 4mm x 16mm/ 0.15" x 0.63". - Package content: 12 caster sets including screws. Color: White, Silver Tone - Color: white, silver - Item weight: 250 grams - Load capacity: 66.0 kg - Material : Metal , Plastic , Rubber - Installation type: top plate - Special function: rotation - Quantity: 4pcs, 12pcs (optional) Package Included: 4/12* casters (optional) Notes: 1. Due to various factors such as display brightness and light brightness, the actual color of the product may be slightly different from the website picture. 2. Please allow a slight deviation between the data and the manual measurement.