Premium #10 Business Envelopes with Full Face Window - Self-Seal Peel & Press Closure - 4 1/8" x 9 1/2" Size - 80lb Text Weight - 500 Pack in Midnight Black - Ideal for Mailing Invoices, Statements & Business Correspondence

#10 Envelope with a Square Flap These envelopes contain an oversized, transparent window centered on the front face of the envelope. Simply position the address to show through the window, which is large enough to show off the entire contents. Peel & Seal Closure Easily sealed via the Peel & Seal Closure along the back flap. Peel it. Seal it. Done! Easily Personalize by Using a Printer or Writing by Hand Compatible with most digital and offset printers, these envelopes are easy to customize. On dark stocks like these, white or metallic inks are recommended. Want more of a DIY look? Gel Pens, Calligraphy and other hand crafts look amazing! LUXPaper is a premium stationery and office supplies brand focused on quality and variety. Our assortment of premium paper ranges from lightweight text stock to heavyweight cover stock, and every weight in between. LUXPaper products, including paper, cardstock, envelopes, and more, are available in a wide selection of sizes and in the largest variety of colors.