Condition: 100% brand new and high qualityMaterial:Tourmaline,Polyester cottonWeight: 40gType: Tourmaline socksEffect:Anti-fatigueMassage Socks: Health Care SocksTourmaline Massage Sock: Self Warming SocksFeatures:1. made of high-quality polyester cotton with the characteristics of soft and comfortable, has a long life.2. the bottom of socks has Tourmaline design that can self-heat to warm and relax your feet in cold weather.3.tourmaline socks relieve leg fatigue,pain,regulate nervous system,self-heating,remove moisture and stop smell remove swelling of legs and feet peeling of skin,produce a static foot massage,regulate blood flow.4. the perfect tool for legs with varicose veins, as well as in kidney failure.5. good therapy for ankles and feet when freezing.6. to acupuncture points. Daily use any time of the day. Wash under running hot water without detergents.7.Great for outdoor activities: skiing, snowboarding, hiking, field hockey, and other sports.Note:There may be some subtle differences between the color of the picture and the actual project.Thanks to manual measurement, please allow 1-2mm difference, thank you.Package Included:3 pair of self-heating tourmaline socks