Premium LUXPaper #11 Business Window Envelopes - 4.5" x 10.375" Commercial Flap - 24lb Bright White Text Paper - Pack of 1000 for Mailing Invoices, Statements & Business Correspondence

When sending letters, invoices or statements, save the time and expense of separately addressing envelopes. Simply position the address to show through the window, or choose our full-face windows, which are large enough to show off the entire contents.