This heavyweight, coated card stock is perfect for postcards, invitations, announcements and more. Printable on both sides, its' ultra-smooth matte finish porduces photo quality color. Meets weight minimum for mailing. SpecificationsBasis weight: 50 lb. (190 g/m?) Thickness: 8.3 mil ISO Brightness: 90 Opacity: 97% Surface Finish: Matte