Furniture cups are used to protect floors from damage as well as to stop furniture from moving when you don't want it to like when someone is sitting down or getting up from a sofa or chair. The anti-skid rubber cups have a textured flat surface that stop them from skidding on hard floors like wood, tile, laminates and more. Simply place the furniture leg on top of the rubber cup and you're done. Provides floor protection and prevents furniture from sliding or moving.