The flaps have non-toxic envelope glue made from vinegar and gelatin. Simply moisten the flap to seal. Envelopes are A2-sized (4.5"x5.75"). You will also receive 20 white mailing labels for addressing the envelopes.
If you would like a different quantity than 20, just convo me and I'll create a new listing. Unfortunately, these envelopes cannot be made in 5x7 as the image is not big enough.
Available in a set of 10:
Enter my Etsy shop homepage here: http://www.inkwhimsy.etsy.com