Reusable: SuperSliders furniture movers are ideal to easily and quickly move large, heavy furniture across hard floor surfaces Durable & safe: rubber foam with felt bottom provide a secure grip on your furniture that can be left under furniture for easy moving and cleaning, or removed to be used again and again All-in-one: multiple variety of shape felt sliders provides the right slider for proper weight distribution on any furniture items across hard woods, tile, and linoleum Multiple uses: tables, sofas, beds, dressers, recliners, heavy appliances and much more 20 Pc kit includes (4) each: 9 inch rectangle, 5 inch square, 6 inch oval, (8) 2.5 inch round felt sliders