Business Source No. 10 Window Business Envelope, Sold as 1 Box, 500 Each per Box

No. 10 business envelopes with windows are good for everyday mailing. Traditional design includes white wove 24 lb. stock, diagonal seams and fully gummed, V-flaps. See-through window is located in the bottom left corner and measures 4-1/2" wide x 1-1/8" high so the recipient's address on the documents inside is easy to see.