Rubber casters have excellent shock absorption cushioning and wear resistance, can be used on tile floors, concrete floors, wooden floors, etc., so that the object can be moved in a variety of environments. Product details - Name: Cart Furniture Replacement Casters - Material: Rubber Polyurethane Steel - Type: fixed caster swivel caster Specifications - Wheel diameter: 100mm 125mm ( 4in 5in ) - Wheel width: 40mm ( 1.6in ) - Installation height: 130mm 155mm ( 5.1in 6.1in ) - Bracket thickness: 2.5mm ( 0.1in ) - Top plate size: 100mm x 81mm 115mm x 100mm ( 3.9in x 3.2in 4.5in x 3.9in ) - Mounting hole spacing: 75mm x 55mm 85mm x 72mm ( 3in × 2.2in 3.3in × 2.8in ) Carrying capacity (upper limit) - Single wheel: 65kg 85kg (140lb 185lb) - 4 wheels: 195kg 255kg (430lb 560lb) Usage - Carts, tool boxes, light machinery, equipment carriers, storage bins, cabinets, DIY, workbenches, furniture, etc. Package contents - Casters × 4 Note - - Casters are only suitable for human propulsion, and it is prohibited to use cars or electric vehicles for traction - The load capacity of 4 casters is the sum of the load capacities of 3 castersUSE FOR MULTIPLE USES: These castor wheels are perfect for so many different uses. Use them for industrial shelving, storage units, toolboxes and work saw benches. You can use them around the home for furniture such as kitchen islands, desks, ottomans, toy shoe bins, outdoor planters, shelves, coffee tables, chairs, and cabinets. Additionally, use them for display exhibition equipment, flight instrument cases, dollies, speakers, and many different types of machinery equipment. Replacement casters are commonly used in logistics, transportation, medical care, laboratories, factories, supermarkets and other places. Can be installed on carts, tool carts, flatbed trucks, workbenches, equipment, DIY, furniture and other objects. Trolley and furniture replacement casters set of 4. Made of rubber tread polyurethane wheels, they are quiet, lightweight, durable, and shock-absorbing. They can adapt to a variety of surfaces without damaging the floor. The swivel caster wheels have built-in double 6002 model ball bearings, allowing the casters to move easily and reduce wear. High-strength steel balls are built into the top plate, allowing the casters to respond to steering in a timely manner under load. Industrial transport caster wheel diameter: 100 125mm wheel width: 40mm installation height: 130 155mm top plate size: 100×81mm 115×100mm installation hole distance: 75×55mm 85×72mm.