Napa Nectar is a great solution for your watering needs when traditional methods will not work. These gel packs can be used for shipping, quarantine areas, bio-containment suites, and disaster planning. The 8 ounce gel packs provide a 7 day water supply for up to 5 adult mice. All ingredients are USDA approved and the water content is 99.35% by volume. These Napa Nectar gel packs have a shelf life of 24 months in a non-refrigerated environment.