Columbian #8 5/8 Security Envelopes, 500/Box, Double Window, 3-5/8″ x 8-5/8″, Release & Seal Self Seal, SimplySafe Tamper Evident, White (COLO156) Description 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. Features: Get a jumbo box of 500 Columbian double window #8 5/8 envelopes (3-5/8″ x 8-5/8″) each with a SimplySafe tamper-evident pull strip, security tinted interior, and easy peel off Release & Seal closureThese security envelopes have a patented SimplySafe seal that will show signs of tampering, safeguarding you against unauthorized openingEach white envelope is made from 24 lb white wove paper with an interior security tint pattern so you can't see what's inside; ideal for obscuring sensitive information & protecting critical documentsThese self seal envelopes have a Release & Seal peel strip; peel off the paper strip and press down for a permanent seal; it's simple, clean, and sanitary with no moisture requiredDouble window envelopes display just the sender & receiver addresses and keep sensitive information out of view; top window: 13/16″ x 3-1/2″; bottom window: 1″ x 4″; envelope: 3-5/8″ x 8-5/8″ Product Details: Brand: Columbian EnvelopesColor: WhiteClosure Type: Self-SealMaterial: PaperNumber of Items: 500Material Type: PaperItem Shape: RectangularColor: WhiteStyle: Self SealingSize: #8-5/8Item Dimensions L x W: 12.13″L x 9.12″WGlobal Trade Identification Number: 09UPC: 026900015609Brand Name: Columbian EnvelopesManufacturer: TOPS ProductsClosure Type: Self-SealNumber of Items: 500Recommended Uses For Product: SecurityAdditional Features: Security Tint, Self Adhesive Shipping Free fast shipping Return Policy All items qualify for returns within 30 days of receipt.