HIGH QUALITY Nonley caster cups are made of silicone material, no odor or no harm to the human body. The rubber-cup of our floor protector is soft, which prevents scratches on the floor and secures the furniture firmly in place. FIT MOST WHEELS Suitable for household or office furniture with wheels. Bed with wheels,; recliner, sofa, chair, sofa, desk, table,; piano, sofa, bed frame, dressing table Our round rubber pads are 3 inches long and are suitable for all furniture wheels up to 2 inches wide. FIT FOR ANY FLOORS The soft furniture swivel cups with smooth edges are suitable for any type of floor without worrying about scratching or damaging hardwood, ceramic tiles, linoleum, laminate, carpets, wood, etc.