Brand ZeroZone Model L033 Color Black Material Outer: Super soft imported composite high elastic stretch fabric; Intermediate layer: Embedded permanent magnet; Lining: Negative ion far infrared fabric layer Quantity 1 Functions Protect joints self-heat protector not only rich in natural tourmaline nano also joined the original micro-crystal germanium; Release a large number of far infrared rays and negative ions activation of human cells under the action of human body temperature and surface water enhance blood and lymph circulation eliminate free radicals adjusting bioelectricity increasing oxygen content etc; Provides best protection for your joints. Packing List 2 x Knee supports