Airex Balance Pad 2 1 2 thick x 16 W x 20 L Disposable Reusable Neb Kits unit * AA rechargeable batteries Color:Yellow unit * AA rechargeable batteries and AC power with charger stand sold separately * Memory for 72 hours of data storage * 3 Year Manufacturer's Warranty * Efficient 60 hrs of battery life * seat has built in abductor posturally correct contoured interior and a safety harness * Convert to floor sitter by adding wedge * Add base to make mobile * The AIREX© Balance pad AIREX© Balance beam and the AIREX© Balance Wedge XL are manufactured from closed cell ultra soft specialty foam consisting of millions of air bubbles * Airex© Balance Products gently compress as you stand on them making you feel as if you were standing on a cloud * Exercises should be done barefoot on the warm and comfortable Balance pad Plus Balance beam or Balance Wedge * Like Airex© Exercise Mats Airex© Balance Products are effective for sport training rehabilitation and physiotherapy * Ideal for balance training coordination and reaction training posture stability training & motor skill training to maintain balance * Measurements: 6cm thick x 41cm x 50cm * Approximately 2 1 2 thick x 16 W x 19 3 4 L