Beyoung Tourmaline Self-Heating Infrared Magnetic Therapy 3 in 1 Pack Neck/Knee/Waist Belt Support Pain Relief Anti-arthritis Kit for Blood Circulation Metabolism Improvement Meridians Unchoking Tourmaline Self-heating Infrared Magnetic Therapy Set is designed for the neck, waist and knee comfortable to wear,paste and firm; Have anti-inflammatory and analgesic, swelling the role Easy to use, discreet and can be used anywhere any time; Safe & comfortable to wear; Outer layer:Ultra soft self-adhesive cloth, easy to take on/off(Can adjust the size); Anti-arthritis and Losing weight,Alleviate the physical local fatigue and pain,anti-arthritis, burning excess body fat to achieve some goal of losing weight; A few skin sensitive populations appears when using skin burning, redness, is a normal phenomenon, will not damage the skin, can be worn time shorten