Columbian CO695 12x15-1/2-Inch Catalog Brown Kraft Envelopes, 250 Count A durable ALL-PURPOSE mailing envelope. Ideal for mailing documents, catalogs, direct mail, promotional material, brochures and more. Heavy-duty 28lb opaque brown kraft material provides privacy of contents. Open end closure. Moisture activated gummed seal. 12" x 15-1/2" 250 envelopes