LUX 10 x 13 Open End Envelopes 250/Box) 250/Box, 28lb. Brown Kraft

Printed with a green diamond border and the words, FIRST CLASS MAIL. Use this to send flat, bulky materials or multiple small items like coins, catalogs and jumbo cards. Zip Stick® self-adhesive flap is on the short side, helping to keep things from falling out after opening. Available in various sizes, they have a center seam construction and are also called "catalog" envelopes.