Staples #10 Window Security Envelopes with Gummed Flaps - 4-1/8" x 9-1/2" - White - 500 Pack

Send secure mail that presents a professional look with Staples #10 Window Security Envelopes. Ideal for business correspondence- #10 is a commonly used envelope size for mailing letters- cheques- billing statements- invoices and more. These white envelopes feature a smart- pointed flap with diagonal seam and a gummed closure that is moisture-activated for a secure seal. Crafted for quality- they are made of sturdy 24 lb stock and come with convenient left-sided address windows. For greater privacy- a security tint prevents others from reading sensitive content.