3-7/8" x 8-7/8" ( 3.875" x 8.875" ), Double Window Envelope, Top Window 1" x 4" Window, 9/16" From Left, 2-1/2" From Bottom; Bottom Window 1-1/8" x 4" Window, 9/16" From Left, 1" From Bottom, White Wove Paper, Remoistening Seal, Blue Woodgrain Tint, 500 Qty / Box.