Thermoskin provides effective treatment and pain relief for sports injuries, arthritis, repetitive strain injuries, and many other conditions. This product combines compression, support, and naturally generated body heat for maximum comfort. These gloves are anatomically shaped to provide warmth and even compression for the temporary relief of arthritic pain. The trioxon lining raises the temperature underneath the skin which increases blood circulation, bringing nutrients to enhance healing. A smooth nylon outer layer provides comfort while you are sleeping, and fingertips openings provide a better sense of touch. To fit, simply insert your hand and make sure the fastener strap is positioned on the back of your wrist. Grip the wrist strap and secure it comfortably. Offered in a range of sizes and sold in pairs. It is important to select the correct size to achieve the maximum product benefits. To find the right size, measure the circumference of your hand around the knuckles. The measurements for each size as follows: Small (7 to 7.75 inches), Medium (8 to 9 inches), Large (9.25 to 10.5 inches), X-Large (10.75 to 11.5 inches).