Complete Body Workout Program. Recommended by top Fitness Trainers and Physical Therapists. Improves balance, coordination & flexibility. Each exercise involves several muscle groups for total body workout. Balls are pressure tested to 1,000 lbs. Iincludes wall chart of step-by-step instructions for a Complete Body Workout program. Promotes a healthier posture. Excellent addition to your overall core fitness level. Valeo donates a portion of the sale of this product to support breast cancer research. Adds just pennies to your shipping cost when purchased with any Canyon Hula Hoop!