CAP Barbell’s Rubber Medicine Ball is a classic fitness tool that has been used for decades to develop strength, coordination and endurance. This new Medicine Ball is designed to bounce for partner or wall exercises, and the tacky feel assures the user a safe and secure grip. Medicine Balls are great for sport specific core training, and help increase strength and stamina. Warning: This product contains one or more phthalate chemicals known to the state of California to cause birth defects and other reproductive harm.