Columbian 6 x 9 Inch Catalog Envelopes are perfect for small document storage and mailings. These professional-looking business envelopes are made from durable brown kraft stock. 28 lb Heavyweight kraft paper keeps contents safe and confidential in transit. Too busy to wet-sponge your way through stacks of waiting mail? Release & Seal envelopes are affordable self-sealing options that don't require moisture. A peelable paper strip protects the adhesive from dust so your envelopes last longer in storage. Just peel, press and go. Our small envelopes are perfect for flat half-sheet or larger folded documents. Use 6" x 9" envelopes as an economical greeting card envelope for 5.5 x 8.5 half fold greeting cards. Stock up on boxes in this versatile size! Center-seam catalog-style envelopes open on the short side. You can drop in contents with ease. Great for sorting paper at the desk, in the classroom or in the file room. 30 Per Pack.