The Gymnic Core Balance Trainer, Inflatable Workout Dome with Base is a multi-functional piece of equipment that can be used for both fitness activities as well as post-traumatic knee and ankle rehabilitation. Use the Gymnic Core Balance Trainer at home, the office, or at the gym to perform a wide range of exercises to help improve balance, coordination, flexibility and stabilization. This piece of equipment easily integrates into your daily routine. It can be used with or without the base; simply adjust the inflation intensity in order to customize the stability level you need. Push your workout to new heights by engaging more muscles groups at a time. By incorporating balance-centric exercises into your workout, it enables your muscles to work harder to stabilize your body. This helps intensify your workout which in turn, burns more calories. Made from durable, latex-free, vinyl which supports a maximum weight of 270 lbs. and is also phthalate and BPA free. Packaged with a bonus fitness guide to enhance your personal workouts and help you get the most out of your Gymnic Core Balance Trainer; inflatable dome is removable from the base for easy transportation and storage. Available in one size, measuring 18.25" L x 18.25" W x 10" H.