LUX® Size 9 window envelope in white color with security tint is designed with moistenable glue flap for secure sealing. 3 7/8" x 8 7/8" Envelope compatible with laser printers has 24 lbs paper weight and is sold as 250 per box. Collection: White. #9 Window Envelopes are perfect for mailing checks/invoices/letterhead/personal letters/statements/direct mail. Contains 250 Envelopes per pack. Protect your privacy when sending checks, forms or other sensitive information. Window Size: 1-1/8 x 4-1/4 Window Location: 7/8 from left 1/2 from bottom. Comes in White w/Security Tint, 24lb. Text Paper. Laser printer compatible. Material: Paper. Dimensions: 3 7/8"H x 8 7/8"W. When sending letters, invoices or statements, save the time and expense of separately addressing envelopes. Simply position the address to show through the window, or choose our full-face windows, which are large enough to show off the entire contents. Tinted pattern inside discourages reading sensitive information through the envelope. Moistenable glue flap. LUX® Size 9 window envelope in white color with security tint measuring 3 7/8" x 8 7/8" forms a time saving solution to overcome the need for separately addressing envelopes and is sold as 250 per box. #9 Window Envelope s(3-7/8" x 8-7/8") with Security Tint are one of the most popular commercial-sized window envelopes available, commonly used as a reply envelope for invoice and business mailings, sent to recipients inside #10 Envelopes in order to mail something back to the sender. The security tint protects your privacy when sending checks, forms or other sensitive information. The tinted pattern inside discourages reading sensitive information through the envelope. The addressing window makes envelope addressing easy. No licking necessary. This 24lb. Bright White is a quality and economical choice. It's available both plain or custom printed for branding, address printing services are also available. These #9 size envelopes are also machine-insertable for higher-volume direct mail.