Material: Copper compression arthritis gloves made of high quality copper nylon and cotton ammonia, breathable and anti itch. Function: Copper compression gloves. Silicone palm and fingers design provide secure grip. Alleviates muscle stiffness and soreness; helps to relieve from arthritis, osteoporosis, tendonitis and other pains. Compression helps relieve everyday aches Application: Copper compression arthritis gloves to Work for Rheumatoid Arthritis, Carpal Tunnel, RSI Osteoarthritis & Tendonitis Open in Fingers Fingerless. Size: Suitable size S, M, L, XL. Please see the product description size. Washing Instruction: Please hand wash, do not dry clean.