Rigid Mailers 17 x 21 Paperboard Photo Stay Flat Mailers 17 x 21 Pack of 10

10 PACK PAPERBOARD ENVELOPES 17" x 21": White Rigid photo mailers. Do not bend envelopes. Shipping envelopes with Peel-N-Seal. Stay Flat mailing envelopes. Surface easily accepts ink, stamps, and labels. HARD ENVELOPES: Rigid mailer with tear strip. Peel and seal closure provide protection for your document, picture, letter, dvd, book, card, artwork, other paper. PREMIUM QUALITY: Our photo mailer is made of 22 point paperboard. Catalog envelopes are self-sealing. Stiff cardboard paper board material makes flat mailers durable. LIGHTWEIGHT: Large mailing envelopes are designed to optimize space without adding additional weight. Photo envelopes construction strong as chipboard helps save on postage. Ship rigid mailers 17x21 with confidence. UNIVERSAL CHOICE: Stay flat mailers 17x21 suit for shipping a wide variety of items: photos, pictures, documents, print, invitation cards, books, catalogs, and calendars. Rigid envelopes will greatly serve for articles, postcards, craft goods, sheets, posters, and magazines.