I've only used it once since purchasing. Material: Polyester Brand: Babamiya Target Age: Adults Color: Yellow Size: M: 180CM, 1.3KG Manufacturer: Babamiya 【Polyester Soft Material｜Comfortable, Doesn't Pinch Flesh】The polyester exterior is soft, eliminating the problem of hard hula hoops "pinching flesh"! Even after rotating for a long time, there are no skin problems, allowing for comfortable diet training. 【Silent Design｜Use at Home or the Gym Without Worry】The special structure makes the rotating sound extremely quiet, allowing you to train without disturbing anyone in your living room, yoga room, or gym. 【1.3kg Optimal Weight & 1.8m Circumference｜Fits Adult Bodies】With a 1.8m circumference and 1.3kg weight, perfect for adult waists, it promotes fat burning in the thighs and abdomen, supporting smooth training. 【No Assembly Required｜Ready to Use Immediately After Unpacking】No troublesome assembly required! You can use it immediately after taking it out of the package, making it easy for beginners to start. 【Popular Hula Hoop Diet Item｜The Secret is Ease of Use】Comfort makes it easy to continue, making it a popular staple for hula hoop dieting! Supports the habit of daily training.