50 Pack 9x11.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9"x11.5" Bookfold Box and small itemsSECURE SEAL: Features

and small itemsSECURE SEAL: Features a convenient peel and seal adhesive strip closure system for quick and reliable sealingMATERIAL: Made with durable yellow manila paper that provides excellent protection for your contentsQUANTITY: Comes in a bulk packaging format for office and business mailing needsVERSATILE USE: Ideal for sending catalogs

18" x 1500 FT

or simply organizing

-16x12x4 boxes -Shipped flat and easy-to-assembly in seconds -Simply fold and tape -Kraft corrugated cardboard -100% Recyclable -Quantity is 25

50 Pack 9x11.5 White Rigid Stay Flats Self-Seal Cardboard Envelope Mailers 9"x11.5" Bookfold Box and small itemsSECURE SEAL: FeaturesFortify your packages with the most robust cardboard mailers on the market. Crafted from premium 250 GSM material, these white mailers are built to shield your shipments from the elements. Ultra durable 250 GSM cardboard construction Self sealing closure for seamless packing Heavy duty adhesive to prevent leaks and spills Don't entrust your valuable items to flimsy packaging. Our top tier cardboard mailers provide unparalleled protection to ensure