Utilizing red light and near-infrared wavelengths, the Redline bell boot addresses many issues of the foot. Proven anti-inflammatory properties and vasodilation can be used to effectively relieve pain and address laminitis, navicular, and many other issues of the hooves, tendons, and ligaments. Conveniently rechargeable, no cords around the horse! One size fits most. Can also be used as a knee wrap. One pair.