To solve a problem that conventionally, the number of Yakitori spits that are sold varies, generally, about 25 spits, and the number may be increased to, for example, 50, 75, or 100 in the case of a feast or the like which requires storage spaces for boxes corresponding to these numbers and a plurality of kinds.

A body is formed of four side plates defining a hollow shape. Bottom plates are formed on the two opposite plates of the four side plates so that notches are continuously provided substantially in the middles thereof via a score. Bottom flaps are provided on the other two opposite plates via the score. These are folded along the score. Projecting pieces formed at both sides of the notches and the bottom flaps are inserted to obtain an assembled bottom. Additionally, in a lid plate 13, notch members 19 and handles 18 are formed on four side plates, and lock flaps 23 are formed on the handles 18, and a cut is formed in each locking piece 22 in which the corresponding lock flap can be inserted when assembled.