Sports Hoop Weight Loss Series: Acu Hoop 4M - 4lb (40 inches wide) Medium, Weighted Fitness Exercise Hula Hoop Use only 5 minutes per day and see significant results in less than 2 weeks. GS certified. Sports Hoop and Acu Hoop are USPTO trademarked. Exceeds international safety and quality standards. Comfortable foam paddings. High quality, durable plastic. For adults weighing between 100lb and 140lb. Easy way to both have fun and adopt a healthy lifestyle. Weighs 4 pounds and measures 40 inches wide. Easily attachable/detachable into 8 smaller pieces. Great for storage and easy to carry around.