Feature●Regulation Shot Put Ball: Size 4.0kg (8.8lbs) shot put balls are used in boys middle school competitions and for girls high school competitions●Standard Build: Cast iron weight shot for shot put practice and competition●Proper Throwing Position: The shot is held at the base of the fingers, dont hold it in your palm. This allows you to flick the shot to much greater distances●Practice Anywhere: Works great for high school, middle school, and at home training routines; take it to the gym and or the field to practice your throwing technique anytimeDescription Silver Arrow Sporting Goods Outdoor Shot Put 4kg (8.8 lb) Dark grey Cast Iron Shot Put Ball - High School Track & Field Shotputs for Girls and Boys