It warms and warms up all the muscles surrounding the knee, especially the quadriceps muscles, which are the first line of defense for the knee and are responsible not only for protecting the knee from shock and sudden movements or improper fall or sprain, but also are responsible for the work and movement of the knee A sound way of walking, bending, sitting, and getting up • Ease of use is what makes it the ideal solution for all knee pain. • • The device works in two ways • • • It works with infrared (infrared) with a circular massager useful in the work of massaging, improving and stimulating cartilage, ligaments and also muscles. • The device makes heating to the ends of the muscles surrounding the knee, which leads to the activity of those muscles and their complete readiness for any surprise movement. • The device benefits all athletes or non-athletes who perform work dependent on movement and the elderly who complain about the effects of aging. • You must use the device for 10 to 20 minutes before the start of any work, exercise or movement that will help you to perform all work easily and smoothly and you will touch the difference from the first use.