Product Description: 1. Description:2 layers spring hoop 2. Materials Hoop: Steel spring(inside) + pvc spring(outside) Waist support: Pvc 3. Color Red+orange+yellow/green+lightgreen+yellow 4. Lead time: in 15 days 5. Product basic features 1)much easier to play and exercise compared with existing round shaped hula hoop 2)with the assistance of waist support, most of people can play and exercise easily 3)much more effective with its stronger pressure and wider touch to body by spring tension 4)this item can be also exercised as the stretching equipment. For more information, please feel free contact with us!