Quality Park #9 Double Window Security Tinted Invoice and Check Envelope, White (500/Box)

Number 9 envelopes are compatible with standard, letter-size, computer-generated invoices and statements. 2 poly windows allow return and mailing addresses to be displayed from contents. The 1-3/16 in. x 3-1/2 in. top window is positioned 3/8 in. from the left and 2 in. from the bottom. The 1 in. x 4 in. bottom window is positioned 3/8 in. from the left and 1/2 in. from the bottom. White wove, 24 lb. envelopes also have an inside security tint for privacy and a gum closure to seal the envelope securely.|Double window fits most 8-1/2 in. x 11 in. computer-generated invoices and statements|Poly windows and inside tint for security|24 lbs. white wove with gummed flap|500 / box