Specifications:

TOPPRO Bosu ball is a fitness training device often used for balance training. This combination of stable/unstable allows a wide range of users, from the young, elderly, or injured to the elite level athlete.
A number of cardio and strength training exercises can also be done incorporating the Aerofit bosu ball for added intensity.

Ex: Lunges, Squats and squat jumps, Squats with overhead press, Pushups and planks, Plyometric moves. It can also be helpful for rehabilitating from injuries and improving back pain.