Glacier Pac UniHeat 20 Hour Heat Pack - 10 Count

UniHeat Shipping Warmers are specifically designed for shipping temperature items such as reptiles, insects, plants, aquarium fish, etc. Combined with insulated shipping boxes these are a great choice for winter or cold weather shipping. Please follow directions on the packaging for best results! Average temperature 70F maximum temperature 110F setting in standard tropical fish shipping box. Directions: Open outer package and expose pack to air, no kneading or shaking required. Heat pack warms up in 3-5 minutes and is ready to use, no pumping oxygen required. Wrap with newspaper to avoid direct contact with fish bag, or tape pack on the inside lid (See Tips for details). Heat pack will not be effective if wet. Do not use if pack becomes rigid Do not open until ready to use. Store in cool and dry place. Avoid exposure to direct sunlight. Enviromentally safe with non-toxic ingedients, dispose with normal trash. Tips: Under 50F environment one heat pack is capable of raising temperat