Designed to fit under the sandwich tray in your b.box bento lunch box, this twin pack of coolers means you’ll always have a spare chilled, ready to go. Why we love them: Keeps food fresher and cooler for longer Easy to use – pop in the freezer overnight, place in lunchbox or cooler bag when you’re packing your lunch Easy to clean – handwash Great size for soothing bumps and sores Made from non-toxic food safe gel