Quality Park No. 10 Single Window Business Envelopes with Embossed Ridges - Single Window - #10 - 4 1/8" Width x 9 1/2" Length - 24 lb - Gummed - White - Poly - 500 / Box

No. 10 Single Window Executive Embossed Envelopes with a gummed closure help mail get noticed. Embossed ridges give mailings a unique, sophisticated look. Fully gummed flap produces a secure seal. 24 lb. bright-white stock gives the recipient a professional impression. Single window on the left fits most invoice address layouts to save you time and optimize efficiency.