New Nekopos Maximum Size A4 Cardboard Boxes, Perfect for Yu-Packet Post, Set of 50 ★ These cardboard boxes can be used as packing materials for Click Post, Yu-Packet (Post), Yu-Pack, and Takkyubin 60 size. Within the specifications for non-standard size mail. Size: Internal - Length 33.2cm x Width 23cm x Thickness 2.6cm External - Length 33.5cm x Width 23.4cm x Thickness 2.9cm Thickness - 1.1mm Total external dimensions - 60 cm Color: Brown Weight: 97 g per box ※ The folded boxes will be wrapped in packing material for shipping. ※ Please note that the shorter side will be folded in the opposite direction from the original. ※ Please be aware that there may be corner bends, dents, or wrinkles upon delivery due to the nature of paper products. If you wish to combine shipping with other items, please consult with us via comment before purchasing. We do not accept combined shipping after purchase.