Product Description: It is made of 85% copper fiber and 15% stretch spandex with a copper content of 3468 mg/kg, which offers excellent antibacterial function. It can kill 99.9% of bacteria. Bacteriostatic copper ions are added to the copper fiber, which can be washed repeatedly without losing their function. Keep warm. Circulation: It can keep warm, promote blood circulation in the hands, relieve pain, and promote healing. Comfortable design: Soft and breathable material that keeps you warm. Effectively absorbs moisture and wicks away sweat, keeping your hands fresh. Wear it in any weather. Freely perform daily activities (mobile phones, computers, knitting, cooking, cleaning, etc.). Applicable people: Elderly people with reduced bone quality; people with intensive hand activities (office workers and designers who frequently use computers and write; students with heavy homework and long-term writing; manual workers such as van drivers, bicycles, basketball, tennis, etc.). Disease prevention: Prevent and relieve tendon injuries. Muscle and joint problems in the hands and fingers, including but not limited to arthritis, muscle fatigue, stiffness, pain, soft tissue injuries, and sports-related injuries, can also be used as a daily supplementary treatment. The cost-effective twin packs allow you to alternate use and cleaning in everyday life and at work, which is extremely convenient.