High copper content is injected into the fabric, we have copper content test report in the fabric of professional institutions. RELIEVE PAIN: Helps to relieve from Arthritis, rheumatoid,Swelling,Tendonitis ,muscle stiffness and soreness. Our arthritis gloves provide mild compression for warmth that increases blood circulation, which ultimately reduces pain and promotes healing PROPER COMPRESSION: Our copper arthritic gloves provide gentle and correct compression that really help you from pain while all your daily work done. COMFORTABLE: Our compression gloves are made of high quality Copper fiber cloth, very comfortable to wear, excellent in sweat absorption and breathability. This is extremely important that you can wear it all night or all day. colour: black Material: Copper fiber cloth Size: 8.5 x 16cm Package Contents: 2 x half knuckle gloves Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.