JAM Paper White 10 x 15 Open End Envelopes are made out of high quality, smooth, 24lb paper and feature a plain, bright white color. These envelopes are sold in even packs of 50. Their generous 10 x 15 inches size makes them great for mailing large papers, charts, documents, forms, files, and more! Each one features a straight flap opening and a reliable, moisture activated gum closure to keep items secure as they make their journey through the mail! These envelopes are a great and easy way to send all kinds larger papers from your office or home! Use them for your next upcoming mailing project!Size: 10in x 15in - Color: White - Quantity: 50 White Open End Envelopes. Size: 10 x 15 inches. Quantity: 50 per pack. Fashioned from high quality 24 lb. paper and features a gum closure. Perfect for personal mail, business mailings, greeting cards, announcements, and so much more!. Sold as 50/Pack.