Specifications: -Standard Basis Weight Range : 80gsm. -A4 Qty in 500 sheets/ream, 5 reams per box. -Basis Weight 80g/m2, (ISO 536) -Thickness 106um (ISO 534) -Whiteness 159CIE (ISO 11475) -Brightness 98% (ISO 2470) -Opacity 95% (ISO 2471) -Surface Roughness, Bendtsen 160ml/min -Grading: A -Sheet Size:210mm x 297mm, International Size A4 -Quality: Virgin Wood Pulp(High) -Colour: White. 1 reams = 500 sheets 1 box = 5 reams . Brand: PaperOne Size: A4 Basis Weight(G/M2): 70 Thickness (um): 97 CIE Whiteness: 159 Brightness(%): 97 Opacity (%): 93 Surface roughness, Bentsen (ml/min): 160. 500sheets per ream(pack),5reams per box,1489box,7445 reams per container 20'fcl.