These Quality Park 6" x 9" catalog mailing envelopes have a quick-and-easy Redi-Strip closure. Just peel and press for a strong, durable seal. Redi-Strip envelopes are the perfect mailroom update for concerns about surface germs in the workplace. Skip the yuck, stay safe and save time with every mailing. Plus, peelable paper strips protect your adhesive from dust so envelopes last longer in storage. These self seal envelopes are inkjet printer compatible, though not recommended for the laser printer. Heavyweight 28 lb kraft paper is opaque and durable. Center seams give added strength for heavy contents. Our small envelopes are perfect for flat half-sheet or larger folded documents. Makes an economical greeting card envelope for 6 x 8 cards. 100 Per box.