The EasyTone Step incorporates two inter-connected air pods that allow for air to be transferred from one to the other. These pods have been engineered to create natural instability. The result is a challenging, yet extremely rewarding fitness experience. Multi-purpose functional training platform provides a diverse range of exercises Provides a total body workout Balance pods create natural instability Reversible usage allows user to workout with pods up or pods down Adjustable air transfer between pods allows you to tailor the intensity of your workout 65cm x 41cm x 17cm