Magnetic Therapy Self-heating Health SocksOverview: 1Made of high quality polyester cotton, it is soft and comfortable and has a long service life. 2 The bottom socks are designed with tourmaline, which can be heated by yourself to relax the feet in cold weather. 3 electric stone socks relieve leg fatigue, pain, regulate the nervous system, self heat, remove moisture, prevent leg swelling and foot peeling, generate static foot massage, regulate blood flow. 4 excellent varicose tools, as well