LUX Open-End Envelopes, 4in x 4in, Flap Closure, Glassine, Pack Of 50

Versatile envelopes simplify your mailing and storage needs. The paper is sturdy enough to handle a variety of items. Made of 30-lb paper stock. Acid-free paper resists fading and yellowing as time goes by. Flap closure helps keep the contents securely enclosed.