About this item 20 Pcs 6×9 White Envelopes You will receive 20pcs mailing envelopes, sufficient quantity to meet your use and replacement needs. The size of the manila envelopes is 6×9 inches, suitable for mailing important papers, business documents, booklets, catalogs, brochures or storing magazines, books and more. Self-Adhesive Design Each of our self seal envelopes is equipped with a double-sided adhesive seal, no glue and water required, no need to lick the envelopes to seal. Just peeling off the strip and sealing the flap to get an effortless mailing. Self-adhesive design manilla envelope are strong stickiness enough to keep the inner documents safe all the time. Protect Privacy The white manila envelopes are made of 100GSM double-adhesive paper, thick and sturdy, which features exceptional rip, tear and puncture resistance, made to last. 6 x 9 envelopes are thick enough to prevent transparency and ensure the items inside are not see-through. keeping your contents private and refusing to leak. Printable Freely Our blank mailing envelopes allow you print shipping label or other custom label via your laser or inkjet printers, and you can print addresses, shipping labels, letters, and patterns on the envelope and you can DIY catalog envelopes according to your own ideas without worry of the ink leaking or blurring Wide Application Our seal security envelopes provide extra protection in mailing, storage and handling, white catalog envelopes can be widely applied to most occasions, like school, office, class, meetings, banquet, ball and more, which are fitting for sending for large documents business correspondence.and more