A set of 10 Yu-Packet Post Mini envelopes and 10 Yu-Packet Post dedicated seals for postal shipping. - Yu-Packet Post Mini: 10 envelopes Envelope size (approximate) Outer dimensions: 21.6 cm (long side) x 17.8 cm (short side) Inner dimensions: 21.1 cm (long side) x 16.8 cm (short side) Excluding the envelope flap Weight: Under 2kg - Yu-Packet Post dedicated seals: 10 seals Simply attach this seal and drop it in a mailbox. Shipping is possible even if the package is over 3cm thick, as long as it fits in the mailbox. No need to write an address, easy shipping anytime from a mailbox! How to use: Pack your item and select shipping in your app. Scan the 2D code. Attach the shipping seal to the package. Drop it in a mailbox and send a shipping notification. We will ship anonymously, without folding the item and with water protection. Thank you for looking. #YuPacketPost #YuPacketPostMini #YuPacketPostMini #YuPacket #MercariBin #AnonymousShipping