Domtar Lettermark Colors Vellum Bristol - 97% Opacity - Letter - 8 1/2" (215.90 mm) x 11 ft (3.35 m) - 67 lb (30390.69 g) Basis Weight - 147 g/m² Grammage - Vellum, Toothy - Sustainable Forestry Initiative (SFI) - Acid-free - Cream - 250 Sheets per Ream - 250 / Pack