High quality materials: This sports waist plate is made of polypropylene resin, which is non-toxic, odorless, tasteless, safe and durable. Over a million rounds, very sturdy and durable. Maximum bear weight: 200 kg. 3D three-dimensional pressing, 8 magnet-activated acupuncture points are fully pressed on the soles of the feet, massaging the soles of the feet, stimulating the senses, twisting the soles of the feet, and relaxing the whole body Scientific design : This waist trainer is made of very high quality ABS and PP materials, which are very environmentally friendly and durable. Non-slip rubber and non-slip textured appearance on the bottom combined with two side protectors ensure your safety and comfort when exercise. Effects: Ten minutes a day spiral fat burning method by this slimming magnetic balance board, adhere to thin waist, legs, buttocks, buttocks, foot massage, eliminate fat and shape a perfect curve. This fitness size twister is suitable for children, office workers and