The Best Window Envelopes #9 of 2023 – Reviewed and Top Rated
2,320 Reviews Scanned
- 500-count pack of #9 security envelopes with Peel & Seal closure―no moisture needed
- Interior security tint keeps content private; securely send checks, invoices, or other confidential documents
- Double window allows sender and recipient addresses to show through
- 24-pound white wove paper for quality and strength; ideal for home or office
- Measures 3-7/8 by 8-7/8 inches each
- 500 PACK SELF SEAL ENVELOPES: HERKKA No9 Security envelopes are designed with Peel and Seal closure-no moisture needed and a premium security tint to protect sensitive information and a super strong SELF-SEAL strip. Suitable for home or office; securely send checks or other confidential documents.
- PREMIUM SECURITY CHECK TINT ENVELOPES: The interior of our No9 Security envelopes use a dark navy, heavy coverage security tint to provide the protection contents and sensitive information, a security tint makes envelopes hard to see through that ensures upmost privacy.
- DOUBLE WINDOW DESIGN: Only sender and return address will show on your QuickBooks invoices and monthly bills through our unique 2 window . No show of memo, Payee line or amount in windows. Suitable for QuickBooks Invoices and business billing statements.
- QUICK-SEAL CLOSURE: Our No9 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting.
- LONG LASTING SUPPLY: Large sized envelopes and 500 envelopes in every pack for a long lasting supply, suitable for everyday business correspondence and large mailing tasks! Click the Orange Button to order now.
- Perfect for mailing payroll checks, QuickBooks invoices, billing statements, confidential documents, and other business mail.
- No need for tape or glue sticks as our strong gummed seal creates a hassle free and safe seal for all your sensitive documents.
- Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design
- Create professional looking mail with the added security of a single window envelope. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels
- Tamper proof design with our hot melt glue adhesive manufacturing process that allows the glue to penetrate the envelope, thus causing the envelope to tear if you open after sealing
- Get a jumbo box of 500 Columbian self seal double window #9 envelopes (3-7/8" x 8-7/8") each with a security tinted interior and easy peel off Release and Seal closure
- These self seal envelopes have a Release and Seal peel strip; peel off the paper strip and press down for a permanent seal; it's simple, clean, and sanitary with no moisture required
- Security envelopes have a strong security tint pattern so you can't see what's inside; ideal for obscuring more sensitive information and protecting critical documents
- Side seam mailing envelopes allow for a smooth, fold-free back panel for printing graphics, logos, and more; durable 24 lb white wove paper provides a professional look
- Stock up on these envelope 500 packs so you always have some on hand; a great buy for small businesses, offices, and schools
- 500 standard-size security-tinted #9 double window envelopes
- Ideal for 8.5-by-11-inch computer-generated invoices and statements
- Double windows 3/8-inch from the left to show sender info (2 inches from bottom) and recipient info (1/2 inch from bottom)
- #9 envelope size 9.84 x 22.54 cm each
Last update on 2025-07-27 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API
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