Keep confidential paperwork moving with a more secure envelope. The Quality Park Redi-Seal Envelope Security #9 Double Window is a smart pick when you want dependable results without extra effort. The quick-close style helps you move through mail runs faster with a cleaner finish. Security styling supports more discreet sending for statements, notices, and sensitive paperwork. Window placement supports faster addressing and a consistent, professional look. It’s an easy way to keep outgoing work organized and on track.