SensaCare is a manufacturer of Natural Hot & Cold Therapy Packs in the Unites States. Our products are commonly used and recommended by chiropractors and physical therapists. This pack is designed for the Knee & Elbow area. It works to relieve pain and discomfort as well as promoting relaxation. The packs is made from Corduroy fabric and filled with a bled of natural herbs and grains which retain and heat and provide a soothing and natural aroma. The pack is divided into channels to evenly distribute the heat among the product, and has two elastic Velcro straps allowing you to wrap the product around the desired area while remaining mobile and active. Use the pack for sore muscles, achy joints, pain relief, injuries, arthritis, tendonitis, and more. Simply heat in the microwave for Heat Therapy or chill in the freezer for Cold Therapy. Heat Therapy can be applied for injuries or aches as it increases blood circulation, accelerates the relief of sore and tense muscles to enable the body to move more at ease, and has the ability to penetrate deeply to the center of the painful and irritated muscle and ease the pain away. Cold Therapy provides a chilling refreshment for the body and skin to relieve inflammation of joints or bruised areas, relieve discomfort as a result of burns or irritations, and reduce fever and body heat. The product will come neatly packaged and sealed in a zip-lock bag with instruction how to use and store it correctly.