TEXTURED GRIP: A robust non-slip tire tread surface offers superior traction during intense workouts to prevent the heavy wall ball from slipping through your hands; security is paramount in exercise balls for physical therapy to prevent damage DURABLE: This medicine ball’s supple PVC rubber shell absorbs impact and holds up through the toughest workouts, letting you unleash med ball slams; the shell has the added benefit of being waterproof to prevent sweat buildup FULL BODY CONDITIONING: Ideal for throws, slams, squats, presses, and core work to improve coordination, strength, power, and endurance; If you’re new to slam ball training, we recommend starting with 10-15 lb for better control and proper mechanics NO BOUNCING: Sand-filled construction minimizes bouncing or rolling for safer slam training; The uncontrolled deadweight design challenges you to engage every muscle to find stability despite shifting sand MULTIPURPOSE: Available from 5-50 lb to support beginners through advanced athletes; Choose lighter weights for younger athletes, conditioning, rehab, and coordination work; Start light as medicine balls may feel heavier than traditional weights