*The information below is copied from Amazon and is in direct relationship to the seller of this product. It does not constitute any guarantees, promises, or information in relation to Z-Line Fitness or Craig Zuckerman.
A durable, non-slip step with adjustable height and the added bonus of instability
Tubing notches around the top for adding resistance tubes (sold separately)
Turn it over and use the base for stability balls
Customize to any fitness level by adding or reducing the air in each individual chamber; includes hand pump 25″ x 25″ x 10″