100 9" x 12" Rigid Mailers, Self Seal, Do Not Bend | heavy-duty cardboard, stay-flat rigid, peel and seal, protects photos, documents, prints, magazines, cards

Safe Shipping: "Do Not Bend" is clearly printed on these 9x12 inch cardboard mailers.
No extra labels or stickers are required; the prominent red printed warning alerts carriers to handle with care.
These photo mailing envelopes are perfect for sending photos, art prints, certificates, magazines, and other documents.
Simple to use with a permanent peel-and-seal closure.
Quickly and securely seal your important mail inside these sturdy paper mailers, featuring a durable tear strip for opening.
Sturdy and durable construction: Made from rigid 450gsm document mailer material that is 1.5 mm thick.
Your items remain flat and protected from bending or folding throughout transit.
Safely ship mail of various sizes: The 9x12 size conveniently fits photos, prints, documents, or any items you to protect in transit, such as decals, stickers, CDs, handbooks, catalogs, or even paperback books.
Picture envelopes are excellent for sending mail that must stay flat during shipment, suitable for small businesses, home-based businesses, stationery companies, online stores, online sellers, or artists.
A rigid mailer measuring 12x15 inches can function as your new magazine mailer