Upgrade your everyday cool with this four-pack of ultra-thin ice sheets-each one only 0.7 inches thick yet engineered for maximum chill. Simply soak the sheets in tap water until the inner resin fully expands, freeze them for a few hours, and you're rewarded with flexible, lightweight cold packs that slide effortlessly into lunch boxes, bento kits, mini coolers, baby-bottle bags, golf coolers, or even the sleeve of a drink koozie. Their slim profile and bendable design let them wrap snugly around sandwiches, sushi rolls, salads, sodas, or craft beers, keeping every item fresh and frosty from the first bell at school to the last bite at a tailgate, the summit of a hike, or the final serve on a sun-soaked beach court. Because they're filled with a non-toxic, high-absorbency polymer rather than loose gel, the packs stay leak-proof and odor-free through hundreds of freeze-thaw cycles, making them a sustainable, cost-saving alternative to disposable ice or messy dry ice. Food-grade and BPA-free, they're safe for direct contact with snacks or baby food, rinse clean in seconds, and can be stashed flat in the freezer so they're always ready for tomorrow's lunch prep, weekend camping trip, or impromptu backyard barbecue. Color: Blue.