If you like stability balls, or if you just like being in shape, you'll love the Bosu Ballast Ball. This uniquely designed ball from the makers of the beloved Bosu will give you a huge variety of exercises that can be done at home or at the gym. Not only can you improve your overall fitness, but also your core strength and balance. It's super easy to use no matter your fitness level. With the ability to accommodate any fitness level and a large variety of fun exercises, the Ballast Ball is definitely a keeper. Includes DVD and foot pump. Unique design makes ball stationary. Allows a larger number of moves and exercises than other stability balls. Includes MDL or multi-dimensional loads for visual effect and audible feedback. Constructed of high-quality, burst-resistant material. 55cm to 65cm inflation, ideal for most participants. Includes workout DVD and foot pump.