Pulsed Electro-Magnetic Field (PEMF) is a proven technology that is used in everything from Bone Growth Stimulators to Ablation Therapy. Clinical research has discovered the ability for PEMF to engage the body's natural healing and anti-inflammatory processes. It has been clinically proven to reduce pain swelling, and provide lasting relief without the use of pain medications through safe clinically proven therapy.Thi Universal wrap can be used on the cervical, elbow, wrist and smaller body parts.