Support: The comfortable pads work to provide support for shoulder pain, joint weakness, or for sitting at a desk for prolonged periods. Neck & shoulder support pad: Get a self-heating or non-heated neck and shoulder support pad. Self-heating: The heated option uses Tourmaline to generate warmth and provide comfort for pain in your shoulders and neck. Four sizes: Choose from small, medium, large or extra-large. Upgrade: Upgrade to receive a pack of two support pads! Material: The breathable pads are made from polyester and Tourmaline. Neck & Shoulder Heating Pad | Large/X-Large | Living Social