Fit & Fresh Cool Coolers Slim Penguin Lunch Ice Packs, Multicolored, Set of 4 (Pack of 2, 8 total) 2 Sets of 4 slim reusable ice packs in fun bright colors Perfect slim size designed to use individually to fit into all types of lunch bags and boxes Ice packs are non-toxic and BPA Free Each ice pack measures 4.75" x 3.15" x 0.25" Ice packs cannot be placed in the dishwasher or microwave