Quality Park Double-Window Envelopes, 3 5/8" X 8 5/8", White, Box of 500

Send business mail with these convenient double-window envelopes 2 transparent polypropylene windows allow return and mailing addresses of the interior contents to be displayed. No. 9 envelopes work with standard, letter-size, computer-generated invoices and statements. Inside security tint helps keep contents private. Gum closure for a secure seal. Features strong, 24-lb paper. White wove construction for durability. Made by Quality Park.

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