The weight ball is filled with sand to prevent jumping or rolling, improving the balance and hardness of the ball.
A surface that is easy to grasp, allowing you to hold the ball firmly even when your hands are sweating.
Improve your breathing ability: medical exercise balls can help you improve muscle mass, increase your heart rate, burn more calories, and improve coordination between your hands and your eyes for smooth movement during exercise.
Great for tough bodies: not rebounding, designed for CrossFit, conditioning, wood cutting, overhead throwing, twisting, mixed martial arts, wrestling, football, basketball, or general athletic training.
