BOSU Home Gym Equipment The Original Balance Trainer 26 Inch DiameterALL IN ONE: Combines elements of cardio, strength, and flexibility into unique and highly effective workouts LAST LONGER: The BOSU Balance Trainer has been tested to last 10x longer than the leading generic balance trainer INCREASED STRENGTH: Weight training exercises incorporating the BOSU increases the challenge and helps build strength faster by forcing the engagement of more muscles IMPROVED BALANCE: Forces you to maintain your center of gravity