Product Name: Waist Twisting DISC Material: durable plastic color: as the picture Feature: 1. This effective aerobic twist board is with reflexology foot markers and reflexology magnets. 2. It can exercise waist, stability as well as help to lose fat of waist. 3. It will be funny and effective matched with music 4. Compact portable design, ideal for workout at home 5. A great help to keep energetic, slim and healthy Size: Diameter: 25cm Thickness: 2.5cm Notice: The largest bearing 100kg How to use: 1. Before using ,please drink 200-500CC warm boiled water to stimulate the circulation of blood to gain a better effect. 2. Put your feet on the waist-twisting device, twist your waist and abdomen at the left and right sides, meanwhile keep your both arm's balance. 3. It will be a normal phenomenon and a good effect after gymnastic exercise if the color of urine becomes deep or the temperature of the human body gets high. 4. You should persevere in the exercise of twisting waist, thus it can reach a sturdy and strenuous effect on your body. Package included: 1 X Twist Waist Disc Board