Purpose: Designed to store, protect, and transport food safely.Structure: Available as single-compartment bento boxes or multi-tiered, stackable styles (often called tiffins).Materials: Commonly made from stainless steel, plastic, silicone, or glass.Features: Often includes secure latches, silicone seals for leak resistance, insulated carry bags, and internal dividers to keep different food items separate. [1, 2, 3, 4, 5, 6]