Protect the floor? problem roulette game using materials that can be rolled safely on hardwood floors and carpet, They roll very smoothly and won't leave any marks or scratches, Perfect wheel replacement for office chairs plastic wheels. /p> Quiet and smooth ride; The swivel wheel caster is made of soft polyurethane, steel and other materials ensure fast and quiet wheel rolling on any surface, precision ball bearings in the universal caster wheel can freely change the direction of chair movement. Heavyweight construction; Larger 3 inch wheels load up to 880 lbs for the 5 metal chair casters. These heavy-duty wheels are best for frequent use and moving over high-pile carpet. Smoothly pivots and wear-resistant; The metal of our chair wheels has a soft polyurethane protection so they won't scratch or rattle when rolling around the office or home, provide more durability and versatility, which means you won't ?will not have to worry about having to replace your casters. Works great for any chair; These casters are designed with the standard size universal stem, easy to replace office chair casters, perfect casters for dining chairs, kitchen chairs, desk chair, vanity chair, the gaming chair, etc.