Quality Park No. 10 Double Window Security Envelopes - 500 (QUA24550)

No. 10 envelopes feature two poly windows for the return and mailing addresses. The inside tint provides privacy for sensitive documents. 24 lb. envelopes are compatible with most standard 8-1/2" x 11" computer-generated invoices and statements. The top window (3-1/2" wide x 1" high) is positioned 1/2" from left and 2-1/2" from the bottom of the envelope. The bottom window (4" wide x 1-3/8" high) is 1/2" from the left and 3/4" from the bottom. Flaps are gummed for easy closure.