I have a box of mailing envelopes free to whomever sends me their zv number first. They are a mix of new and used. A few look rough but all are still usable. They are smaller sized. Size #2 - 37, Size #1 - 18, Size #0 - 11 and Size #00 -3 Tanya R. Procknow Mackinaw Area Public Library Youth Librarian (231)436-5451