500 no. 10 security envelopes - gummed flap - tamper proof design - security tinted with printer friendly design - number 10 size 4 1/8 x 9 1⁄2 inch - pack of 500 blue summit supplies <p><b>#10 windowless security envelopes create completely secure mail</b></p><p> we understand how difficult it can be to find secure envelopes that completely secure and hide your envelope contents throughout the mailing process. we understand this frustration; thus our envelope design protects your contents.</p><p>windowless design is the safest type of envelope. easily print, write, or add labels to address the envelope</p><p>quick and easy to use gummed seal design this has a strong adhesive that completely secures your contents to prevent them from falling out and being lost or shown to others </p><p> dark black security tint that is completely opaque and blocks others from seeing your documents </p><p>thick and durable white paper stock that completely protects your contents during transit. no need to worry about tearing of the envelope </p><p><strong> save time sending your mail </strong></p><p> our low profile design makes for easily printing in most hp, brother, cannon, xerox, and other standard laser and ink jet printers. </p><p><strong>100% money back guarantee</strong></p><p> we stand behind our products completely. we understand that sometimes buying physical products can be difficult if you cannot physically see what you are buying, however, if our product is not exactly what you are looking for, or does not meet your expectation then send them back anytime for a 100 % refund. </p>