Cash Registered Mail Envelope, Postal Approximately 20 x 12 cm (when the flap is folded) This is a set of 3 cash registered mail envelopes (single-layer type). * The serial number on the back may differ from the image depending on the time. Although new and unused, these items have been handled by someone else, so please purchase them if you understand that they are used goods. These items have been stored at home after purchase. They will be folded for shipping to reduce shipping costs. Perfect for using up points or before coupons expire!