Staples #9 Double-Window Envelopes- Secure Mailings #9 standard invoice (3-7/8′ x 8-7/8′) Gummed closure with commercial flap Security tinted for privacy and confidentiality Accommodates forms produced by most software mail systems Window size: 1-3/16′ x 3-1/2′ Top, 1′ x 4′ Bottom Window placement: top window is 3/8′ from left and 2′ from bottom, bottom window is 3/8′ from left and 1/2′ from bottom 24 lb. white wove paper Staples Brand 100% Satisfaction Guaranteed Important documents safely reach their destination with Staples #9 standard invoice double-window, security-tint, gummed envelopes. These standard-size envelopes pair well with software-produced mailings, as they have viewing windows that perfectly align with the sender and recipient details. Security tinting obscures confidential information from prying eyes. Standardized for Convenience Whether you produce documents individually or configure bulk mailings with software, Staples #9 envelopes are made to accommodate the standard layout commonly used for business invoices. Instead of wasting valuable time searching for the right envelopes or reformatting pages, you can be sure the envelope’s double windows will properly display the names and addresses on your folded documents. Tinted for Confidentiality Staples’ professional-grade envelopes each feature an interior print that effectively conceals your papers. Confidential documents containing billing details, personal identification, and other sensitive data are protected throughout transport, so you can prevent business or client information from being compromised. Send Documents Securely Slip your documents into these high-quality envelopes and the 24-pound woven paper will guard against normal wear and tear during the travel process. Each closure flap is pregummed with secure adhesive to keep envelopes from opening before they arrive at the final destination.