Glacier Pac UniHeat 40 Hour Heat Pack - Case (240 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! Provides an averafe warmer surface temperature of 100F (38C) Open outer package and expose pack to air. Shake gently to loosen firmly packed contents. For best results, individually wrap warmers loosely with a piece of newspaper or place inside a paper bag. Place wrapped warmers along walls of the shipping box or between containers within the shipping box. Make sure to create space between shipped item and warmer with space filler or newspaper. If wrapping with paper is not desired, warmers can be placed directly in the shipping box with the red-striped side facing up. Or tape warmers to the inside of the box lid with the NON red-striped side facing the lid. DO NOT cover the venting holes l