【Yamato Transport】Koneko Bin 420 Special Envelopes - Set of 20 Thickness: 3cm Weight Limit: None A4 Size Compatible This product allows you to send packages via Yamato Transport, with the recipient's package delivered directly to their mailbox. The special envelopes are 420 yen each, including shipping! If you purchase the special envelopes here, you won't need to pay for shipping when you send your package. Detailed shipping instructions are printed on the front of the envelope, so please read them. Shipping costs are the responsibility of the customer, so please let me know your preferred shipping method. Thank you for your understanding.