When you can't or shouldn't fold the contents, here's the professional way to send flat but bulky materials- pamphlets, brochures, sales literature, booklets, annual reports, magazines, or catalogs. The flap, usually rectangular in shape, is on the long side for easier filling. Choose from a variety of colors to suit your style. Available with moistenable flap, some with self-stick Peel & Seal®. Also see our Open End selection.