PURPOSE: To attach the zipper tape of an open fastener to an optional size wallet in order to engagingly connect its side wall to a partition with the tape.

CONSTITUTION: A partition plate 12 of the partition 3 is formed substantially as large as a side wall plate 7 of the side wall 2. A slide metallic fitting is mounted on a pair of the zipper tapes 9 of the open fastener, where the zipper tapes can engage with the zipper tape 9 of the side wall 2 fastened by sewing to the periphery portion of the partition so as to permit the edge of the zipper tape 9 to protrude in the opposit sides. The cylindrical members 10 fastened by sewing to the zipper tape 9 are arranged on a covering member 11. The wallet is assembled by joining the zipper tape 9 of the side wall 2 with the zipper tape 9 of the partition 3, the zipper tape 9 of the partition 3 with the zipper tape 9 of a cartridge 4, the zipper tape 9 of the cartridge 4 with the zipper tape 9 of the side wall 2 by means of the slide metallic fitting so as to be openable and closable. Thereafter, a cover 5 is equipped by means of a fitting 6 so that the joined edge portions of the zipper tapes 9 may be covered. In this condition, the wallet can be used by opening and closing the storage space by means of the slide fitting.