Fit & Fresh Cool Coolers, Slim Ice Packs for Lunch Boxes, Bags and Coolers,  Penguin Shapes for Kids, Set of 4, Multicolored BRIGHTEN UP THEIR DAY: Set of 4 slim reusable ice packs in fun, bright colors PERFECT SIZE: Slim size designed to use individually to fit into all types of lunch bags and boxes MATERIALS YOU CAN TRUST: Ice packs are non-toxic, food safe and BPA-free DIMENSIONS: Each ice pack measures 4.75" x 3.15" x 0.25" CARE TIPS: Ice packs cannot be placed in the dishwasher or microwave. Hand wash only