Topic summary
Jūbako

Jūbako (; lit.'tiered boxes'), or rarely kasanebako (重箱), are tiered lacquerware boxes used to hold and present food in Japan. The boxes are often used to hold osechi, foods traditional to the Japanese New Year, or to hold takeaway lunches, or bento.
Jūbako are traditionally made of wood, generally lacquered, coming in sets designed to stack two, three, or even more layers high. Often square, jūbako may also come in different shapes. A set usually comes with a lid for the top layer.
A sagejūbako (提げ重箱, lit. "portable jūbako"), or, for short, a sagejū (提重), is a picnic set of jūbako in a carrier with a handle.
There is also jikirō (食籠, lit. "food basket"), a kind of Chinese-styled bowl, some stackable like jūbako.