Using the Lifeline Medicine Ball Set is an excellent way to develop total body strength, power, and stability. These medicine balls feature a unique textured surface for sure-handed grip, uniform wall thickness for superior balance, and a durable rubber construction that provides medium bounce. The balls are designed for handheld, light bouncing & rebounding and throwing exercise training use. The set comes with 2lb, 4lb, 6lb, 8lb and 10lb increments, allowing you to progress as you build strength and coordination. The large weight markings provide easy level identification. The set also includes a tiered rack to store and display your equipment.