Hot/cold comfort wrap will relieve stress and pain in your shoulders, neck and back. To use as a heat pad: Lay the wrap on a towel and heat in microwave for 1,5-minutes. Check the warmth of the wrap before using. If needed, heat for additional 15 seconds. Do not microwave for more than 3 minutes. To use as cold therapy: Place the wrap in a plastic bag and put into the freezer for 1 hour. The Hot Cold Comfort Wrap measures 22,5-inch x 13-inch. $19.98.