Traditionally in China workers did not eat cold lunches, but instead brought these metal food carriers with multiple layers to heat over a range top stove. Each layer serves to hold either rice, soup, vegetables, meat or fish. The durable stainless steel design is made to last. A tight clasp holds the various layers in place and a sturdy handle makes the lunch box easy to carry. Each layer is 15.2cm dia. x 26.7cm deep.