3-5/8" x 8-7/8" ( 3.625" x 8.875" ), Double Window Envelope, Top Window 7/8" x 3-1/2" Window, 5/16" From Left, 2-7/16" From Bottom; Bottom Window 1" x 3-1/2" Window, 13/16" From Left, 11/16" From Bottom, White Wove Paper, Remoistening Seal, Blue Woodgrain Tint, 500 Qty / Box.