This is a handmade goshuin-cho (temple stamp book) cover. Interfacing is applied to the outer fabric. A 12x18 cm goshuin-cho fits easily. There is no fastener, but the flap is large, so you can securely store your goshuin. It's easy to take in and out. It will be shipped by regular mail, but if you purchase multiple items, it will be shipped by Mercari delivery. I make each item carefully, but it is handmade by an amateur. Please forgive any slight imperfections such as warping. m(_ _)m Also, please understand that there may be some fabric flaws such as fiber debris or snags that are original to the fabric.