4-1/8" x 9-1/2" ( 4.125" x 9.5" ), Regular Envelope, No Window, Western States Laid, Recycled Colored Super Sulphite Paper, Paper Color: Soft Gray, Laid Imaging Finish, Diagonal Seam, Flap Down, Remoistening Seal, 500 Qty / Box, 2500 Qty / Ctn, 7 lbs. per Box