Lettermark Vellum Bristol Multipurpose Paper - 97% Opacity - Ledger - 17" (431.80 mm) x 11" (279.40 mm) - 67 lb (30390.69 g) Basis Weight - 147 g/m² Grammage - Toothy, Vellum - Sustainable Forestry Initiative (SFI) - Chlorine-free, Acid-free, Printable - Blue - 10000 Sheets - 250 Sheets per Rea