9304 Double Window Confidential Envelope 9 x 4 1/8″ QTY 500 9304 Double Window Confidential Envelope Size: 9 x 4 1/8″ No addressing needed! Just fold, insert materials and mail. The double window design clearly shows return and destination addresses. Quality paper stock! 24# White wove stock. Side seam construction: These seams allow for a large, uninterrupted printing area of the envelope. Top Window: 2 3/4 x 7/8″   3/8″ between windows Window alignment: 1″ from top 5/8″ from left Bottom Window: 3 7/16 x 1″ Window alignment: 7/8″ from bottom 7/8″ from left 500 per box