Rubbermaid LunchBlox Kids Lunch Box Container Set, Flat, Assorted Colors 1866737 Containers snap neatly into the Blue Ice tray to stay organized in kids' lunch bags Leak-proof lids are easy to open  no adults needed Blue Ice tray keeps lunches chilled and fresh without refrigeration Fun, kid-friendly colors for boys and girls and are optimally sized for kids' favorite lunch foods All kit components are BPA-free, microwave, dishwasher and freezer safe