It's no secret that the #10 security envelope is the workhorse of business mailings, and we've designed our standard gummed seal #10 envelope to keep your documents safe and secure behind a strong permanent glue seal throughout transit. Our most popular business envelope is made from a durable 24lb white wove paper and comes equipped with a low-profile flap design. These envelopes are specifically designed for ADP payroll with an offset double window. The dark security tint lining keeps mail confidential and all the way to its destination. We understand that buying products online can sometimes be difficult because you cannot physically see what you are buying; however, if our product is not exactly what you are looking for or does not meet your expectations, then we welcome you to send them back anytime for a refund.