Relieve Your Pain. Soft, washable cloth cover Pliable ThermiPaq pad filled with all-natural, clay-based materials It is non-toxic, biodegradable and environmentally safe Velcro strap Recommended by leading healthcare professionals.This product is specially designed to work on the back, neck and shoulders. Suggested Use: Heat Therapy vs Cold Therapy.The type of therapy you need depends on the type of injury you have incurred;It is important to determine the appropriate therapy as using the wrong treatment can actually cause additional harm.Heat Therapy Applications.Heat brings increased blood circulation to an affected area;This helps to relax tight muscles and restore flexibility in a wide variety of ailments such as: Muscle pain/soreness Muscle spasms/cramps Arthritis Chronic neck or back stiffness Menstrual cramps Cold Therapy Applications.Cold decreases blood circulation to an affected area. This helps to reduce the swelling and pain caused by inflammation and relieves the discomforts often associated with: Joint/muscle injuries Back/neck pain Arthritis Sinus/stress headaches Post-surgical pain Sunburn/other burns If you are unsure which therapy to use, consult your physician for the proper treatment method. UPC: 749836053025 Weight: 3.37 lbs