The Bosu® gives a total body workout: abdominal, aerobic and toning for the lower body. Sleek, compact design allows for easy transportation and storage, and quick positioning for any type of workout. Includes BOSU Balance Trainer, owner’s manual and pump. 2.75″ x 18″ x 18″ (7 x 46 x 46 cm). Weighs 17 lbs (7.7 kg).