Intended use: Reusable therapeutic hot & cold pack for use with common aches, pains, swelling and bruising. Packs are designed to retain a therapeutic temperature for approximately 20 minutes. Cold therapy - freeze for at least 2 hours. Heat therapy - heat in microwave for specified time. Suggested heating time for (1) one Thera Pearl sports pack. 700 watts - 40 seconds - 1000 watts - 35 seconds - 1250 watts - 30 seconds. See full directions on pack prior to use and application.
Always refer to the actual package for the most accurate information