Our desk chair wheels replacement will NEVER scratch, smudge or damage your floors. Enjoy a carefree, safe glide across wood, hardwood, laminate, vinyl, tile and carpet floors all day long. This caster can be used on a variety of floors, you don't need to worry about whether you need to buy a floor mat to protect the floor. But if you insist, it can also work well on chair cushions. Enjoy carefree and safe glide on wood, hardwood, laminate, vinyl, tile and carpet floors throughout the day The height of the fixed feet of office chair glides is close to the height of the mounting feet. It is suitable for preventing the air pressure rod from damaging the floor Fixed stationary castors have good traction, maintain stability on smooth floor surfaces (wood, tiles, laminates), provide greater traction than casters, and reduce friction, vibration and noise.