Columbian 6" x 9" Envelopes are perfect for document storage and mailings. Use this smaller 6 x 9 envelope size to send letters with small photos, booklets or other items you'd rather send flat without folds. These Columbian envelopes are made from classic 24 lb white wove paper. Moisture-activated gummed flaps provide a permanent seal that keeps documents secure. When kept in a cool, dry place, gummed envelopes can last years in storage. Booklet-style envelopes open on the long side so you can stuff thick stacks with ease. Side-seam envelopes make it easier to print logos and other information on back without folds and creases getting in the way. Ideal for business stationery, invoices, statements, checks, marketing promotions and more. Stock up for home, office and school. 100 Per box.