![Open-Side Business Envelope, 1 Window, #9, Square Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35219]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/600x600/products/19512/19513/276504__93938.1691779952.JPG?c=1 "Open-Side Business Envelope, 1 Window, #9, Square Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35219]")
![Open-Side Business Envelope, 1 Window, #9, Square Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35219]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/1280x1280/products/19512/19513/276504__93938.1691779952.JPG?c=1 "Open-Side Business Envelope, 1 Window, #9, Square Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35219]")
Product Overview
Business-weight, 24 lb stock gives this envelope a professional feel. Wove finish provides a crisp appearance. Fully gummed flap ensures a secure seal. Open-Side Horizontal OrientationFeatures an address window. Seam Type: Side; Flap Type: Square; Trade Size: #9; Security Tinted: No. [QTY/UOM: 500 / 1BX]
![Open-Side Business Envelope, #9, Square Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35209]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/500x659/products/19507/19508/274899__64896.1691779951.JPG?c=1 "Open-Side Business Envelope, #9, Square Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35209]")
![Double Window Business Envelope, #9, Square Flap, Self-Adhesive Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35217]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/500x659/products/22617/22528/733098__36561.1691781028.JPG?c=1 "Double Window Business Envelope, #9, Square Flap, Self-Adhesive Closure, 3.88 x 8.88, White, 500/Box [SKU: UNV35217]")
![Security Tint Window Envelope, #9, Commercial Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: QUA21212]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/500x659/products/71906/70258/668090__84406.1692630300.JPG?c=1 "Security Tint Window Envelope, #9, Commercial Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: QUA21212]")
![Double Window Security-Tinted Check Envelope, #9, Commercial Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: QUA24524]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/500x659/products/71861/70213/604282__35827.1692630290.JPG?c=1 "Double Window Security-Tinted Check Envelope, #9, Commercial Flap, Gummed Closure, 3.88 x 8.88, White, 500/Box [SKU: QUA24524]")
![Open-Side Business Envelope, 1 Window, #10, Square Flap, Gummed Closure, 4.13 x 9.5, White, 500/Box [SKU: UNV36321]](https://cdn11.bigcommerce.com/s-iqof5nfcfj/images/stencil/500x659/products/19513/19514/276053__20699.1691779952.JPG?c=1 "Open-Side Business Envelope, 1 Window, #10, Square Flap, Gummed Closure, 4.13 x 9.5, White, 500/Box [SKU: UNV36321]")