Fitness Hula Hoops for Adults, Smart Weighted Hula Hoop with 360 Degree Auto-Spinning Ball Massage 360° Massage and Fat Burning: The fitness hula hoop is equipped with a rotating weighted ball that can massage the waist during exercise, which can not only burn body fat, but also relieve back pain after sitting for a long time. It is very suitable for people who need to lose weight after childbirth and sedentary office workers. It is recommended to exercise for 30 minutes a day. Automatic Counter: The fitness hula ring hoop has an automatic digital counter that records the waist movement during exercise. To turn it on or restart it, just press the button to start. Integrated Counterweight: The new and improved design integrates the rotating ball into the infinity hoop, avoiding accidental falls or collisions that may occur when the ball is suspended by a rope. Detachable Design: It is designed with 13 segments or 26 massage nodes: 10 non-detachable segments + 3 additional detachable segments, so you can place the necessary segments to adjust the ring to fit your waist. Suitable for people weighing less than 100 kg. Anti-fall Design: This smart weighted hula hoop is designed for beginners of this type of exercise, because its precise fit with the waist can prevent the fitness ring from falling when the waist movement stops due to lack of training or insufficient strength. Silent and smooth bearings, integrated smooth guide rails, easy to control!