Offset Double Window First Class Mail Envelope, Moisture Seal, 50/Pk …

Use this "First Class Mail" offset window envelope to mail any tax return or report with software-compatible slip sheets. A blue interior tint adds security while the cellophane window allows the names and addresses to clearly show through. Size: 9 1/2" x 12" Top Window Size: 1 3/4" x 5 1/2" Top Window From Left Side: 1 1/8" Top Window From Bottom: 8 7/8" Bottom Window Size: 2" x 6" Bottom Window From Left Side: 2" Bottom Window From Bottom: 4 3/4" Flap Opening: Short Seal: Moisture