Staples - Security Tinted #10 Double Window Envelopes, 4 1/8" x 9 1/2", 500/Box - White

Send bills, invoices and payments securely through the mail with these #10 double-window envelopes. Security tinting on the inside keeps personal information shielded from view, and the gummed closures ensure contents stay safely inside of each envelope. Constructed from white woven paper, these #10 double-window envelopes stand up to the rigors of the mailing process.