500 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 DOUBLE WINDOW ENVELOPE: The NO. 10 envelope's dual window design allows for easy reading of the window's contents. It is suited for secure business mail, invoices, bills, checks, and other business correspondence.
DOUBLE WINDOW DESIGN: Sending and mailing addresses can be clearly shown. Protects sensitive content and information for standard business and legal mailings, advertising campaigns, etc. Reduces the hassle of handwritten addresses.
QUICK AND EASY TO SEAL: Built with a super strong self-sealing adhesive strip that forms a complete, secure seal across the width of each envelope, removing the need for glue sticks and licking envelopes, allowing for quicker and easier sending of more invoices. A major time saver and ideal for mass mailing.
SAFE INNER GRAIN: Using inner grain secrecy printing technology, the secure tone backing makes the envelope hard to see through and ensures the privacy of your invoices and statements under the light without any prying eyes.
LONG LASTING SUPPLY: With 500 NO. 10 double window envelopes per box for long lasting supply, they are perfect for everyday business correspondence and large mailing tasks