Quality Park #10 Window Envelopes are standard business envelopes measuring 4-1/8" x 9-1/2", made from 24 lb. white wove paper with a smooth finish. Each envelope features a single window measuring 4-1/2" x 1-1/8", positioned 7/8" from the left edge and 1/2" from the bottom, allowing the recipient's address to show through without manual addressing.

The commercial flap uses a gummed closure — simply add moisture to seal. The traditional diagonal seams and commercial flap design are compatible with automated inserting and folding equipment, making these suitable for invoices, checks, statements, and direct mail campaigns. Sold in a box of 500.