1-3/4" x 2-7/8" ( 1.75" x 2.875" ), Open Side Drug Envelope, No Window, Western Sulphite, White Sulphite Paper, SFI Certified, Vellum Finish, Diagonal Seam, Flap Down, Remoistening Seal, 1000 Qty / Box, 10000 Qty / Ctn, 2 lbs. per Box