Brand new This weight hoola hoops is new design, no drop, light and simple, no space and easy to play. Whether at home or outdoors, even at work, you can use it. At first, you can put all 4 pieces of iron into the pendulum to get used to it. 2 IN 1 HULA SMART HOOP: The smart hula hoops ring combines both massage and calorie-burning features in the following areas: abdomen, hips, thighs and full body heating. With a silicone contact tip with sharp spikes, it helps to massage the contact area without causing pain like plastic material. Relaxing gentle massage, making exercise time more comfortable. FOR EVERYONE: Everyone can play. Children or adults. To be highly effective, be sure to use 30-45 minutes at a time, use 3 times 1 week or more. Please carefully check the rope of the pendulum, the connections to ensure safety when using, avoid causing danger to people and objects around if the pendulum accidentally slips from the tether.