The Back on Track Fleece Wrist Cover with Thumb may be helpful to those who perform repetitive movements with their wrists or hands such as typing on a computer, or those who have sustained a wrist injury. Our Wrist Cover with Thumb is made with our Welltex technology, which uses your body’s own energy to create a far infrared effect, soothing aches in your wrists and hands. While wearing the wrist cover, the reflected heat may help reduce wrist and thumb tension. Included: One Pair