100 Pack Envelopes. Cute envelope dimensions are 4.6 x 6.3 inches with a rustic, simple and elegant look. Pack of 100 envelopes can meet all your home and office needs.Made of 120 Gsm paper, the contour flap heavy paper postcard envelopes are thick enough to prevent transparency. Bright color cards in our paper envelopes that you do not have to worry about the contents being exposed. The greeting cards envelopes are water glue seal. Wetting the seal slightly, folding and keeping the flap glued 2-3 minutes. Ensure the envelope stays sealed so your contents don't fall out. Nice brown invitation envelopes are for greeting cards, Christmas cards, handmade cards, shower invites, Save the Date, graduation invitations, postcards and more. Envelopes come with a sturdy box for protecting them from damaged during transportation, good for the unused brown envelopes organize and storage. weight: 1.30 pounds