Bentgo Ice Lunch Chillers &ndash; Ultra-thin Ice Packs (4 Pack - Purple) Set of 4 ice packs keeps food cold and fresh for longer Perfect for everyday use in lunch bags, lunch boxes and coolers Designed to fit in Bentgo Bag and compatible with most other lunch bags, lunch boxes and lunch coolers Ultra slim rectangular design - Each ice pack measures 6.5 Non-toxic and BPA-free - 1 Year Warranty