The Bosu Balance Trainer is half an inflatable exercise ball while the other half is a hard, flat surface. The ball has a diameter of 65 centimeters (25.5 inches) with a height of 10 inches when fully inflated. The trainer has a maximum user weight capacity of 300 pounds. The flat platform has six rubberized feet to prevent sliding when the platform is on the floor. Bosu also claims their balance trainer lasts 10 times longer than generic balance trainers.
Bosu states that their balance trainer combines cardio, strength, and flexibility into one workout. They also claim that the trainer improves strength, balance, and flexibility. Bosue shares that when you incorporate the Bosu trainer into your workouts, it increases the difficulty of exercises and helps to build strength and balance by forcing engagement of more muscles and making you maintain your center of balance.
The Bosu Balance Trainer has many positive reviews. Customers found that the trainer worked well and helped them improve their balance. They also loved that they were able to get the same brand as commercial gyms in their home gyms. Multiple users purchased a Bosu trainer to continue their physical therapy exercises at home. Negative reviewers complained that the included air pump was bad and made it difficult to inflate the Bosu. Some buyers have issues with the ball portion deflating and having to repeatedly re-inflate it before workouts.