Benefits and features Quiet, floorfriendly movement: polyurethane wheels with a soft tread deliver smooth, noise rolling, absorb shock, and protect floors from scratches on wooden floors, tiles, concrete, and asphalt. Durable, load construction: 2 mm thick galvanized steel bracket for long service life and wear resistance. Strong load capacity: supports 70 kg per wheel; a fourwheel set handles up to 210 kg in total. Flexible sizing and compatibility: threaded rod swivel casters set of 4 with wheel diameters of 63 mm, 75 mm, or 100 mm; mounting heights of 92 mm, 107 mm, or 128 mm; wheel width 25 mm; threaded rod size Ø12 mm x 25 mm. Easy replacement and mobility: ideal for updating restaurant carts, toolboxes, storage boxes, cabinets, coffee tables, shoe racks, shelves, workbenches, and other movable items; helps objects move with less effort and saves time. Specifications Wheel material: polyurethane with soft tread Bracket: galvanized steel, 2 mm thickness Load capacity: 70 kg per wheel; 210 kg for four wheels Wheel options: diameter 63 mm / 75 mm / 100 mm Mounting height options: 92 mm / 107 mm / 128 mm Wheel width: 25 mm Threaded rod: Ø12 mm, length 25 mm Quantity: 4 casters per set Applications and use scenarios Food service and hospitality: casters on restaurant carts or service trolleys to achieve quiet, floorsafe movement and reduce floor wear in traffic areas. Workshop and storage: fit toolboxes, storage boxes, cabinets, or workbenches to allow easy repositioning during organization or cleaning. Home furniture and organization: suitable for coffee tables, shoe racks, and shelves to simplify moving and rearranging furniture without damaging floors.