These Cello Envelopes are the perfect way to showcase your greeting cards, envelope, art, photos, and other crafts & hobbies! Tolerates 1/16" size. Flap seal with adhesive. First measurement is the open, flap side, and the second measurement is the length from the bottom of the envelope to the opening (flap is not included in length mesaurement). USPS approved.
These envelopes are made from high-quality, 1.6mil thick polyprophylene. Acid and Lignin Free. The polyprophylene will not rip, wrinkle, tear or fog.