Whether you are looking to tone and strengthen, improve core strength, lose weight, or simply get healthy and fit, the BOSU(R) PRO 65 cm. Balance Trainer is easy to use, fun, and effective. Use the trainer, dome or platform side down; the options and exercise progressions are endless, and help to enhance mobility, strength, balance, and overall fitness levels. User-Friendly Ideal for any age or fitness level Base side has six rubberized feet Flip balance trainer to either side for strength training or cardio exercises Accessories for Endless Workouts Includes dual action hand pump, wall chart, and 6 workout DVDs Additional Details Product diameter: 26"/ 65 cm. Maximum user weight limit: 300 lbs. 90 day limited for home usage only. Warranty is void if used in a commercial setting.