PERFECT SIZE: Ideal size for everyday use. Each ice pack measures 4.75" x 4.75" x 0.25" KEEPS FOOD COLD: Includes 1 set of 4 reusable, non-toxic, BPA-free ice packs CONVENIENT: Fits into all types of lunch bags, lunch boxes, coolers and grocery totes SLIM DESIGN: Great for using in tight spaces or stacking several together for greater cooling power CARE TIPS: Hand wash only. Do not microwave Cool Coolers Ice Packs are perfectly sized to fit in all types of lunch boxes and bags, grocery totes and coolers. So head off to school or work with cheese, milk, fruit, yogurt and veggies knowing that what you pack will stay cool and fresh until you are ready to eat. Fit & Fresh offers innovative and convenient solutions to make it easier to eat healthier at work, at school and wherever you go with a complete line of reusable containers, insulated lunch bags, coolers, insulated totes and more.