This is a double-sided kraft cardboard box suitable for shipping via standard postal mail, Yu-Packet, and Click Post. Recommended for packaging small items. It will be shipped in a宅配ビニール袋 (delivery vinyl bag). Please note that there is a possibility of corner bends, dents, or wrinkles during delivery. Internal dimensions: Approximately 134mm x 82mm x 24mm External dimensions: Approximately 143mm x 93mm x 28mm Total external dimensions (3 sides): Approximately 27cm If the total weight including the box is up to 50g, the shipping cost is 120 yen for standard mail (within the size regulations), and 140 yen for up to 100g. The cardboard will be shipped unassembled. Please refer to the product images for details.