2 Stackable Large-Volume Containers: Top container holds 450ml of food while the bottom container holds 900ml. Stacked together, they are perfect for packing a variety of foods in healthy portions. Food-grade, Safe Eating: Food-grade premium-quality materials are used to make every meal super safe. Each container includes 2 layers: the inner layer made with 304 stainless steel and the outer layer made with BPA-free pp plastic which is microwave safe (Note: Do not put center devider with sealing strap and the stainless steel in the microwave.). Leak & Spill Proof: A sealing ring is embedded in each lid of the containers which lock food in freshness without leaking and odor. Easy Carry & Storage: The upper lid with handle and double buckles makes the lunch box super easy and comfortable to carry. You can use 1 layer or both layers for different food combinations. What You Get: A 2-layer lunch box and a spoon.