Neck brace relieves pain without compromising your mobility, it absorbs sweat fast and keeps your neck dry and odor free with breathable materials. Size: 52*10.5cm, Heating surface length: 12.5cm, one size fits the most men and women. Neck health ideal to assist relief from ailments including stiff neck, arthritis, headache, muscles spasms, sprains or strains and other neck injury pain. It also protects the neck and minimize the risk of injury. Self heating design has self-heating magnets with tourmaline which has three dimensional healing techniques with infrared heat that makes the healing process faster and simpler.Ergonomically soft cushions the neck for a comfortable, supportive fit, stimulate the blood circulation & relax the regional muscle to eliminate the inflammation swelling, keep warm, relieve fatigue.Effective and comfortable neck support with faster healing, it reduce swelling & stiffness with no side effects. Self-releasing far infrared heat provide warming and soothing sensations, no drug involvement, it works on improving blood circulation in and around the spasms or sore muscles