The Three-in-One is a three-piece nesting bento lunch box set. This nifty bento container makes it easy to pack a variety of foods and keep them all separate - and safe from squishing! This Three-in-One is perfect packing a healthy entree and two side dishes. It is modular and dishwasher safe. You can pull out the snack container and use it separately, freeing up more space in the upstairs for more food. 100% high-quality, food-grade stainless steel.