10" x 13" Double Window First Class Booklet Envelope, Peel & Seal, Pack of 50

Simplify First Class booklet mailers with an envelope with double windows to give space for the addressee and for the return address. Print a cover page in landscape format with the addresses and other pertinent information so you don't have to print directly on envelopes or add a step by applying address labels. This particular double window envelope has a landscape booklet orientation for the documents to be inserted. Envelopes can accept multiple pages, booklets, or important documents marked for the recipient's attention. This envelope has a peel and seal closure, as well as first class mail and diamond border imprinted on the envelope. Double window first class mailer envelopes measure 10" x 13" and open on the long side for easy insertion of mailings.

Envelope markings help identify the First Class mailing for postal routing, and can help the recipient identify the importance of the mailing.