The insert caster design fits to replace 99% of old and broken wheels of standard bar (7/16" x 7/8") office chairs, desk chairs, gaming chairs, and computer chairs. They are widely used in home, office, library, bar, store, table, etc.AdvantageThe casters wheel is made of carbon steel, PU+PA, which is strong in pressure resistance, wear-resistant and durable, does not hurt the floor, is not easy to fade, and is strong in corrosion resistance; 360-degree flexible rotation, smooth and quiet.InstructionOur computer chair wheels will not scratch or damage your floors. Designed to glide quietly on wood, hardwood, laminate, vinyl, tile and carpet floors.Note:Please note that the load capacity of 4 wheels can only be calculated as the load capacity of 3 wheels. Because the road surface is uneven, the force on the 4 wheels may be uneven.
