This is a set of 4 "A4 Hard Type Card Cases" purchased from Seria. I purchased them as spares but am selling them as they were not used. They are excellent not only for storing important documents but also for "preventing bending (reinforcement)" when shipping photos, clear files, or thin booklets on Mercari and other platforms. [Product Details] - Product Name: A4 Hard Type Card Case - Manufacturer: Sun Note Co., Ltd. (Sold at 100-yen shops like Seria) - Size: A4 compatible (Inner dimensions approx. 215 x 302mm) - Material: Rigid vinyl chloride resin - Quantity: 4 sheets [Recommended Uses] - Storing certificates, diplomas, and permits - Creating restaurant menus - Oshi-katsu (protecting A4-sized flyers and posters) - As a writing board substitute - As "bend prevention" packaging material for shipping on flea market apps [Condition] New and unused. Stored in the original bag from purchase. *As these are store display items, there may be minor initial scuffs or small scratches on the exterior or the product itself. Please only purchase if you understand the quality of 100-yen shop items. [Shipping] Will be placed in an OPP bag to prevent water damage and shipped in an envelope or a courier mailer bag. As the size is tight, it will be shipped directly in an envelope without additional cardboard reinforcement (the product itself is a hard case, so its strength is not an issue). Shipping is planned via "Yu-Packet Post." How about using them if you don't have a store nearby, or to use up your points? Thank you for looking. #HardCase #A4 #A4Size #Seria #100YenShop #SunNote #OfficeSupplies #Stationery #OshiKatsu #Storage #Keeping #PackagingMaterial #BendPrevention #Reinforcement #BundleSale