Certificate of Contents (3-part carbonless copy) - Ships via Neko Pos

Thank you for viewing.
This is a certified mail (3-part carbonless copy) set.
For demand letters, notices, overdue notices, etc.
Will be sold to those who need it and are looking for it.
Will be shipped in an envelope and clear file via Nekoposu.
(Delivery estimate: approximately the day after tomorrow for the Kanto region, and around the next day for the Kansai region.)
Can be changed to YuYu Mercari便. Please comment.