#9 Security Envelopes, Double Window, Invoices and QuickBooks Statements, 3-7/8 x 8-7/8 Inches, Gummed, 24 lb White, 500/Box (QUA24527)

These boxes contain 500 white #9 double window security envelopes (3 7/8 in x 8 7/8 in) designed to protect sensitive information; a reflex blue pattern conceals the contents from view. Double window envelopes show both sender and recipient addresses. The top window measures 3 1/16" x 15/16", placed 15/16" from the left edge and 2 1/2" from the bottom. The bottom window measures 4" x 1 1/8", positioned 1" from the left and 13/16" from the bottom. #9 mailing envelopes measure 3 7/8 inches in height by 8 7/8 inches in width. They are made from 24 lb white wove paper with professional side seams. #9 envelopes are designed to fit inside #10 envelopes. To seal, simply apply a little moisture to the glue strip along the envelope flap and press closed; there is no peel-off strip to discard. Stock up on boxes of 500 machinable #9 envelopes for efficient bulk mailings