Get relief from your aches and pains with a Thermipaq Hot/Cold Pad. This pain relief pad uses clay to give you penetrating relief from your pain. It works as a cold pack and as a hot pack for both hot and cold therapy. You can use it over and over again and take it with you wherever you need to go. This extra-large pack is made especially for your back, thighs and shoulders. Includes a multi-use cotton wrap with a Velcro pouch for the clay pack.