The SMAI Commercial grade medicine ball is a high grade quality ball with superior internal construction, designed to outlast the competition. Triple layer construction starts with a tough inner bladder, followed with a thick nylon wall for weight & strength, and finally a durable rubber outer shell. SMAI Medicine Ball Racks are a commercial grade storage solution to keep your medicine balls off the ground and neatly tucked away. Suitable to hold up to ten balls, it is made with the highest qual