This 500-pack of Double Window Envelope Wallets, with Item #CE05B, is perfect for businesses and individuals alike. The overall size of these envelopes is 3-3/4" x 8-5/8", and they feature a double window design for added convenience. These envelopes are ideal for use as plain envelopes, postal envelopes, and for packing and shipping purposes. They are made from high-quality materials and are designed to provide maximum durability. Whether you are a business or an individual, these envelopes are sure to meet your needs.