Performance Wristies were designed specifically for musicians to keep hands and fingers warm by heating the lower arm, wrist, and lower hand. Heating these areas provides warmer blood to run through the players fingers thus keeping the hand and fingers at a more safe, pleasant, and dexterous temperature when playing in the cold and are perfect for all outdoor activities. Performance Wristies help improve circulation while maintaining total dexterity through its finger free design. The highly breathable, moisture wicking, and machine washable Polartec 4-way Power Stretch Jersey-face material used keeps your hands and wrists dry and warm while your fingers are free for playing, or tucked into a glove for extra warmth! Performance Wristies have a more sleek look and custom fit than the original Wristies. These Small Performance Wristies are 7.5" long, black, and are for small hands with a circumference of up to 7".