Brand new, unused, and free shipping. Cardboard One Cushion Envelope, Maximum 13 for Nekopos and Yu-packet Compatible with Nekopos, Yu-packet Post, and Yu-packet Click Post. We have stock, so we can accommodate more than 13. Please let us know the desired quantity, and we will provide a price quote. *The inner dimensions are smaller than A4 size, so A4 size items will not fit. Please be aware. *The 13 envelopes will be packaged in an OPP bag and shipped with a Yu-packet Post seal. Please note that this is a simple packaging method to offer a lower price (Photos 7 and 8). [Product Number] CFC80-A4 [Inner Dimensions (Inside Size)] Width 285 x Height 220mm [Outer Dimensions] Width 305 x Height 220 + Flap 50mm Smooth with an opening tape! Slimmer size than conventional products The opening tape allows the recipient to open the envelope with one touch. The thickness of the bag (the height of the air cushion (bubble wrap) granules) is about half that of conventional products, so you can pack thicker items when shipping with services that have thickness restrictions, such as mail services. Storage space is also halved.