9 x 12 - 25lb Western Dura-Print FSC Open End Catalog Kwik-Tak First Class Border - [Layered White Paper / Poly / White Paper, (FSC CERTIFIED), Smooth Finish, Green Diamond Border, "First Class Mail" on Face and Flap, Center Seam, No Window, Pressure Sensitive Seal, Flap Down] - 500 per carton