6-1/2″ x 9-1/2″ (6.5″ x 9.5″), Open End Catalog Envelope, No Window, Western Sulphite, White Kraft Paper, Paper Color: White, SFI Certified, Vellum Finish, Center Seam, Flap Down, Kwik-Tak, 500 Qty / Box, 2500 Qty / Ctn, 7.5 lbs.