1. Highquality materials / workout hoop: We choose highquality ABS plastic to effectively prevent ageing. Unlike ordinary hula hoops, the upgraded exercise hoop is better suited for weight loss or training. 2. Will not fall/weighted fitness hoop for adults: This beginner exercise hoop is very convenient to use. It is recommended to use it daily for 30 minutes and it can burn about 700 calories each time. 3. Silent Ball Bearing/ Weighted Exercise Hoop with Ball: When exercising, the gravity ball rotates 360 degrees around you. Connected to it are 2 sets of silent bearings, which can still rotate flexibly during highspeed rotation with low noise, bringing you a comfortable sports experience. 4. Adjustable size/suitable for different body types: It has 24 ly removable and spliced components. The buckle design allows each component to be firmly connected together and the operation is very simple. You can adjust the exercise hoop according to your needs to ensure a perfect fit for different waist sizes (appropriate waist size is 26'47').