Product Number: 10009849 ■ 3cm Thick Cardboard Box This cardboard box has an outer thickness of 2.8cm, making it suitable for shipping via Yamato Transport's "Nekoposu" delivery service, especially for transactions on person-to-person trading sites (Mercari, Yahoo! Auctions, PayPay Flea Market, etc.). In addition, it can also be used for shipping via the "Rakuraku Mercari Bin" and "Yuyu Mercari Bin" services on the Mercari flea market app, as well as Japan Post's Click Post, Yu-Packet, and regular mail (within specified size limits). Furthermore, the sum of the three sides is 56cm, so it can be used as a 60-size parcel delivery. ■ Easy to Pack! Convenient Box for Shipping Books and Clothes The bottom surface is perfectly sized for A4 documents, and the thickness is a very compact 2.8cm. Packing is easy. It's easy to check the contents of the box before sealing. It is suitable for packing and shipping magazines, T-shirts, towels, etc., and is recommended for通販業者 (online retailers), and those who use online auctions and flea market apps! ■ Space-Saving Storage! Even if you purchase in bulk, the storage space required is surprisingly small.