Columbian CO740 9x12-Inch Catalog Self-Seal Recycled White Envelopes, 100 Count A durable ALL-PURPOSE mailing envelope. Ideal for mailing documents, catalogs, direct mail, promotional material, brochures and more. Convenient and secure self-sealing Self-Seal closure. Simply fold flap down and press for a quick seal. Heavy-duty 28lb recycled white wove material. Manufactured from recycled content paper with a minimum of 30% post-consumer material. Open end closure. 9" x 12" 100 envelopes