Degeneration arthritis caused finger joint pain. GG bio-ceramic finger cots are very effective, relieve finger joint pain instantly. Available in five sizes, cover thumb, index finger, middle finger, ring finger and little finger. Made by 3 layers spandex with bio-ceramic impregnated, emits far infrared radiation, penetrating 4 cm under dermis, into finger joints. Durable, washable with gentle detergent. To help people understand and try our far infrared finger cot, we offer a free sample, just send in a return envelope with stamps, must specify desired size.