Staples - Security Tinted #9 Double Window Envelopes, 3 7/8" x 8 7/8", 500/Box - White

Mail invoices safely with these Staples standard invoice double-window gummed envelopes. Each envelope is made with 24-pound white paper, offering protection against wear and tear and weather, while the gummed top closure on the commercial flap ensures envelope contents stay secure. These Staples standard invoice double-window gummed envelopes come in a pack of 500 for bulk mailing and are tinted, protecting any confidential customer information.