When sending confidential information through the mail, such as financial statements, medical charts and legal documents, use Quality Park No.10 Single Window Antimicrobial Security Envelopes. The security tint prevents anyone from reading the contents through the envelope. Plus, they're equipped with antimicrobial treatment, a single-window, open side design and regular gum closure. Envelope/Mailer Type: Business/Trade
Envelope Size: 4 1/8 x 9 1/2
Closure: Gummed
Trade Size: No.10.
Unit of Measure : Box of 500