Quality Park 24550 Dbl Wndw Envelopes, No.10,Invoice, 4-1/8-Inch x9-1/2-Inch, 500/BX,WEBrand: Quality Park Color: White Features: Sold as 500 Box. White wove finish. Blue security tinting. Binding: Office Product model number: 24550 Part Number: QUA24550 Details: Double window design eliminates the need to print on envelope. Wove finish adds a professional touch. Blue security tinting ensures greater privacy. EAN: 0085227245502 Package Dimensions: 12. 0 x 9. 6 x 4. 1 inches