PURPOSE: To form a storing case consisting of a pair of joined case bodies molded from a single die.

CONSTITUTION: A storing case consists of a pair of case bodies 1 of the same shape each of which is formed into the shape of an open box-like container with a bottom wall 11 and a peripheral wall 12 and is provided with a stopper piece 2 for holding the opening edges of the case bodies 1 together in a joined condition and the case bodies 1 are connected together in an opening and closing manner by a pivot part 3 consisting of a pin and a pin receiver engageable with each other and provided on the peripheral wall 12 of each case body 1. A projection 4 as in the form of a horizontal shaft used both for a pivot part of the stopper piece 2 and for a locking part thereof is formed on the peripheral wall 12 of each case body 1 in a position opposite to the pivot part 3.