There are two magnets at the bottom of the toe ring, which can radiate magnetic force of 1 100 gauss to stimulate acupoints. When placed on the thumb of the toe, the leg muscles can be activated when walking, so that the legs can be slim and the O-shaped legs can be corrected. That's what the instructions say, but I looked it up online and found that losing weight is fake, and so is correcting O-legs. You can only lose weight through exercise, and O-legs can only be operated on orthopedics.
Moreover, the price of this product is generally around 5 yuan, which is fake at first glance.