The dome can be used for almost any exercise that is normally performed on an aerobic step or on the floor. As the Air Dome is an unstable surface exercises performed on the Dome are more dynamic working the core, making exercises both more challenging and more effective, bringing results faster. Can be used either side up. Air Dome Pro II / Wobble Board. Includes eyelets for clipping on resistance tubes. Includes 8" hand pump to inflate the dome. Make exercises both more challenging and more effective. Colour: Silver. Height: 21cm (6.5") when fully inflated. Base Diameter: 59cm. Max User Weight: 140Kg (300lb).