Large Carpal Pet Therapy WrapCalderas Pet Therapy line is customized for canine anatomy, and can be used on either the right or left leg. Purchase an additional Pet Therapy Wrap with gel, and treat both legs simultaneously. All Caldera reusable Pet Therapy Gel is Made in the USA and can be applied either hot or cold. Pet Therapy Gel is latex free, non toxic, non hazardous, microwave and freezer safe and remains pliable when frozen. Heating and freezing instructions are on each