3-1/2 inches. New! Contains four 3-1/2 felt pads. Move furniture and other heavy items across hard surface floors effortlessly with an easy slide. Round, heavy duty, felt pads allow you to slide furniture and other heavy items easily over hard surface floors. Top surface grips furniture legs while the felt underside allows for slide ease. Ideal for hardwood, tile, laminate, marble and other hard surface floors. Large enough (3-1/2 inches) to easily fit most large-sized furniture legs. Can be left in place for cushion support. Made in China.