* Adjusts to fit securely to any closed door, providing a stable base for performing situps * 3 height adjustments * High-density foam padding provides comfortable use * Clamp is padded to protect door * Easy-turn knob to secure clamp * Durable, powder-coated black finish * Easy assembly * Dimensions: 12L x 12D x 5H inches * Manufacturer"s warranty included - see complete details in the Product Guarantee area. About TKO TKO"s mission is to manufacture and design innovative fitness and boxing equipment to te wellness and a healthy lifestyle. Founded in 1996, TKO has become a leading provider of products for elite boxing events, including the National Golden Gloves competition and the International Female Boxing Association. TKO is committed to bringing you fitness products that will provide you years of value and enjoyment. * Steel construction with comfortable foam * Adjustable to fit securely under any closed door * 3 height adjustments * Dimensions: 12L x 12D x 5H inches * Manufacturer"s warranty included (see product guarantee)