Staples #9 Gummed White Double Window Security Envelopes - 3-7/8" x 8-7/8" - 500 Pack

Staples #9 white double window security envelopes feature gummed flaps for secure sealing and double windows for easy address display, ideal for mailing invoices, statements, and business correspondence. Made from durable white paper with tamper-resistant security tinting, these envelopes protect sensitive information while maintaining a professional appearance. The 500-pack ensures a reliable supply for office or business mailing needs.