750 Pack #10 Double Window Self-Seal Envelopes, Security Tinted Size 4 1/8 X 9 1/2 Inch, For QuickBooks Invoices, Business Statements & Documents, 24 LB Paper

NO.
10 SECURITY ENVELOPE: The NO. 10 envelope's dual window design permits easy viewing of the window's contents. It is appropriate for secure business mail, invoices, bills, checks, and other business correspondence.
DOUBLE WINDOW DESIGN: Sending and mailing addresses can be plainly shown. Shields sensitive content and information for standard business and legal mailings, advertising campaigns, etc. Minimizes the trouble of handwritten addresses.
QUICK AND EASY TO SEAL: Equipped with a highly strong self-sealing adhesive strip that creates a complete, highly secure closure across the width of each envelope, removing the need for glue sticks or licking envelopes, enabling faster and simpler sending of more invoices, a significant time saver and fitting for mass mailing.
SAFE INNER GRAIN: Employing the inner grain secrecy printing technology, the secure tone backing renders the envelope difficult to see through and safeguards the privacy of your invoices and statements under light without any prying eyes.
LONG LASTING SUPPLY: With 750 NO. 10 double window envelopes per box for a long-lasting supply, they are perfect for everyday business correspondence and large mailing tasks