⚠️ Please refrain from unauthorized reproduction of descriptions and search terms. I am also listing on other sites. → Mercari prohibits the unauthorized use of text described as "outside the Mercari site," so if I notice unauthorized reproduction, I will report it to the administration as unauthorized reproduction of text from another site. Are the sleeves that came with your issuance worn out? [New, Unopened] Seria ① Passbook case to prevent magnetic failure, 5 sheets, logo pattern <Size> Approx. 100 x 155 mm <Material> Main body: Aluminum foil Prevents magnetic failure such as read errors and data loss! Protects against magnetic interference from everyday items such as computers, smartphones, and magnets in bags and wallets. ② Card protection sleeves Compatible with card sizes (54 x 85.6 mm) Plain clear x 4 sheets For My Number Card x 4 sheets Total 8 sheets Soft material Perfect fit Thin and easy to insert Hides personal information on My Number Cards. Also protects the personal number in the two-dimensional barcode on the back! Keeps cards looking good! Set of 2 Immediate purchase OK ⭕️ Price reduction ❌ ◼︎ Since it is unopened, the details have not been confirmed. Please purchase only if you understand that there may be small dust particles inside the packaging or initial scratches. ◼︎ We cannot accept returns or exchanges due to initial defects. Please contact the manufacturer. ◼︎ This is a personal inspection, so there may be oversights. Please refrain from purchasing if you are concerned about minor details or are looking for a beautiful item. Smartphone, iPhone, magnetic error, electromagnetic wave, interference prevention, IC card, magnetic shielding sheet, read error prevention, transportation card, wallet, credit card, commuter pass, passbook, bank, driver's license, health insurance card, medical examination ticket, My Number insurance card, card protection, protective film, card case, personal information protection, convenient goods, idea product CanDo, Daiso, 100 yen shop