Tynor I 44 Universal Hot And Cold Pack 1 is used for managing pain and discomfort in individuals. This pack can be used for both hot and cold, making it versatile for various therapeutic needs, including pain relief, muscle relaxation and reducing swelling. The pack is reusable. It helps ensure comfortable application on various areas such as joints, muscles and the back. This pack can be microwaved for warmth or frozen for cold therapy. This pack is easy to carry and suitable for use by children and adults.