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Your cart is empty.Columbian #8 5/8 SimplySafe Security Envelopes are ideal for mailing important documents or sending sensitive client information. Each security tinted envelope has a scrambled blue pattern printed on the interior that conceals the contents. The patented SimplySafe seal is constructed to show any signs of tampering. These business envelopes are still easy for the sender to close and the intended recipient to open. The Release & Seal strip peels right off so you can press to seal without any moisture. A pull strip makes opening the envelope straightforward and prevents you from tearing the documents inside. Double window envelopes show sender and receiver addresses; the top window is 13/16" x 3-1/2"; 5/8" from the left; 2-1/4" from the bottom; the bottom window is 1" x 4"; 5/8" from the left; 5/8" from the bottom. Stock up on number 8 5/8 mailing envelopes with security tint for billing paperwork, tax documents, accounting records and more. Overall envelope dimensions 3-5/8 x 8-5/8 inches. White. Box of 500.