DESC: Increases flexibility and coordination Helps develop strength Each ball includes replacement plug and adapter High-quality vinyl construction with latitudinal ribs for easier grasping Weight-tested to hold up to 1,000 lbs. static weight when properly inflated Patient's Height Recommended Ball Size > 55' - 60' 45 cm 61' - 66' 55 cm 67' - 71' 65 cm 72' - 75' 75 cm Over 75' 85 cm Keywords: physical fitness, Ball, Hygenic Corporation,