Our 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! Our Three-in-One is perfect packing a healthy entree and two side dishes. Our best-selling bento, the Three in One is a 100% high-quality, food-grade stainless steel container. Because it does not contain plastic, the lunchbox is free of all estrogen-mimicking chemicals, such as bisphenol-A (BPA), phthalates, and bisphenol-S (BPS). But it's not leak-proof since no plastic gaskets are used. Product Details: Durable design uses 100% food-grade stainless steel 201. 3 piece nesting bento set. Includes upper and lower food containers plus a snack container. Three different sections keep food from touching and mixing. Also works great for portion control. 31 oz capacity (3.8 cups) Total. Bottom section: 12 oz capacity (1.5 cups). Top section: 14 oz capacity (1.75 cups). Snack container: 5 oz capacity (.75