This is an aluminum book-shaped lunch box. It's made by a manufacturer called Teinen. It has one divider, two food containers, and a slide-out chopstick case (see photo 4). The food containers come in large and small sizes, and the packing is clean. After you finish eating, the food containers fit inside the lunch box, making it compact. Lunch Box Length: Approximately 21cm Width: Approximately 16cm Height: Approximately 4cm Food Container (Large) Length: Approximately 13.5cm Width: Approximately 9cm Height: Approximately 3cm Food Container (Small) Length: Approximately 11cm Width: Approximately 8cm Height: Approximately 3cm