Removable Design: Easy to assemble / remove, 8 removable parts for easy storage and transport. So you can take it anywhere. Suitable for indoor and outdoor use, so you can burn your calories anytime you want. Adjustable size: according to the figure, can be adjusted. The package consists of 8 sections, 1 kg, measuring 19-35 inches wide. You can remove 1 or 2 parts, then set 6 (28.7in, 1.65Ib) or 7 (33in, 1.98Ib) for the hula hoop. Perfect for beginners. Wave Design: The wave pattern increases the massage area around the waist and gives that fat burning feeling. Burn more calories Safe material: ABS (acrylonitrile butadiene styrene) material wrapped with soft NBR (nitrile rubber) foam. Eco-friendly and 100% safe and non-toxic. Feel the Burn: Hula hoop exercises are more intense than other exercises and may burn more fat. Beginners should be careful not to exercise too much in order to avoid injury to the waist.