The Hot and Cold Gel Wrap Compress can help ease sore, tired, and aching muscles. Use on arms, knees, shoulders, and more. The elastic design has soft edges making it comfortable to wear. The hook and loop closure helps keep the compress in place. The 12" x 9" gel pad can be removed so you can freeze or heat up depending on your needs. The outer cloth portion can be washed by hand. One size fits most. Comes packaged inside a hanging box.