HP Double-sided Blockout Banner - 54in x 164ft - 85 Brightness - 100% Opacity - 54" (1371.60 mm) x 164 ft (49.99 m) - 344 lb (156035.78 g) Basis Weight - 510 g/m² Grammage - Smooth Matte - Long Lasting, Durable, Water Resistant, Tear Resistant, Double-sided, Curl Resistant, Flame Resistant, Aci