Roughness ;140ml/min Thickness :110um Opacity:95% Ream box :5 ream Quality: very high 500 sheets per ream 5 reams per box Packing details: 500 sheets per ream 5 reams per box 1560 boxes per container(with pallet) 1600 boxes per container( without pallet) 7800 reams total in one 20fcl( with pallet) 8000 reams total in one 20fcl( without pallet)