● MATERIAL: Eco-friendly+Sand. ● WEIGHT: 2~10kg:1kg up; 12kg/15kg/18kg/20kg; 20~100kg:5kg up; 4~12lb:2lb up; 15~80lb:5lb up; 100lb/120lb/150lb/200lb. ● SIZE:2~10kg/4~20lb:dia23cm;12~30kg/25~65lb:dia28cm; 35~50kg/70~100lb:dia33cm;55~70kg/120~150lb:dia36cm;75~100kg/200lb:dia38cm. ● HIGH-DENSITY MEDICINE EXERCISE BALL: The Weight Ball is filled with sand to prevent it from bouncing or rolling and enhance the balance and firmness of the ball, dead weight design is perfect for forceful slams without the heavy medicine ball bouncing back or rolling for better control and safety. ● EASY TO GRIP SURFACE: Feature a grooved and textured PVC shell to help you get a firm grip on the ball even with sweaty hands. ● THICK SEAMLESS DESIGN: Specially formulated resilient soft shell which is rotationally molded for a seamless construction to add more durability and ensure it cannot be split over time of use. ● BOOST YOUR AEROBIC CAPACITY: Improve muscle mass, increase your heart rate & burn more calories, enhance coordination between your hands & eyes for smooth movements in sports. ● IDEAL FOR THE TOUGHEST WODS: Non bounce, specifically designed for CrossFit exercises, conditioning workouts, wood chops, overhead throws, twists, MMA, wrestling, football, basketball, or general athletic training. Full body conditioning - from powerful throws to basics like squats and presses, weighted medicine balls help improve coordination, core strength and endurance. ● WIDE SELECTIONS - All medicine balls, slam balls and wall balls come with wide selections. Choose the weights of your preference. ● HAPPINESS - All genuine BalanceFrom products are covered by a 100% BalanceFrom satisfaction support. ● SPORT TYPE: Baseball. ● NO BOUNCE DESIGN - Ideal for various throwing and Slamming routines; equipped with an air valve that releases pressure to prevent bursting. ● FULL WEIGHTS different STYLES FOR ALL YOUR NEEDS —We have full sets weights and different styles, perfect for any levels of user, you can choose the best according to your exercise preference and workout intensity.