Additional Details ------------------------------ Bullet point: DESIGN: The rectangular shape allows for complete coverage and ease of use as you can simply lay it over the affected area. The arrayed sewing holds the internal content in its place and helps in providing a uniform hot or cold compression in whatever way it is convenient to you. Directions: To use, microwave for 1-2 minutes for hot therapy or chill in the freezer for 15-20 minutes for cold therapy. Place the compress on the affected area for 15-20 minutes, or as needed. For hot compression, it helps in flushing out pain-inducing chemicals and reduces muscle stiffness. For cold compression, it lowers metabolic rate, constricts blood flow, and helps reduce swelling, edema, and pain. Always ensure the compress is not too hot or cold before use to prevent burns or frostbite.