The DF805 Deltech Fitness seated calf machine is an incredible buy. Get the best calf workout available on this seated calf machine with a 500 lb capacity. The frame is made of heavy gauge steel tubing with a tough powder-coat finish, the seat and knee pads are constructed of high-density foam padding covered with top-grade vinyl that is sweat-resistant and easy to clean. The frame is solid and stable providing a safe workout and the leg pads adjust quickly and easily with a pull-pin to accommodate users of all sizes. Use with standard weight plates or Olympic weight plates with the included Olympic adapter. *WEIGHTS NOT INCLUDED*