The bento lunch box comes with a built-in ice pack, and the removable ice pack keeps food cooler longer and freezer safe. Large ice packs are custom made to fit in lunch boxes, so chances of getting lost are greatly reduced! 6- Compartments are perfectly divided according to your child's appetite to encourage healthy and balanced meals, you can put half a sandwich, wrap, fruit, vegetables, cream cheese and yogurt in it, and it will stay cold all day ! The upgraded bento-style lunch box comes with a detachable and reusable ice pack, and the interesting patterns make children enjoy good mood at school every day. The lunch box can be used for microwave heating. Lunch box interior top rubber-coated rim lids are used to seal each compartment and prevent sauces from leaking, keeping meals and snacks fresh and tidy during transport. Two latches make opening and closing easy for little hands. Safe Material: ABS, Food Grade Safe PP, TRITAN, BPA Free, No Vinyl, Lead or PVC. Ideal school field trip birthday holiday gift for boys and girls aged 3-8.