JAM Paper & Envelope 10 x 13 Open End Catalog Envelopes are made out of smooth 30% recycled 24lb paper which makes them both reliable and environmentally friendly! These envelopes measure 10 x 13 inches in size providing space to contain standard sized and slightly larger sheets of paper without bending or folding. Each one opens on the short end and features a straight flap with a dependable and easy-to-use secure gum closure for added reinforcement. These envelopes feature a beautiful color making them sure to stand out. Use them to give mailed documents letters or photos a festive look during the holiday season or to brighten up any mailing during any time of year! Size: 10in x 13in