Specifications:Sheet Size:210mm x 297mm, International Size A4Quality: 100% Virgin Wood PulpWhiteness = 102%-104%, Natural WhiteCapability: High Speed Copying100ppm, LaserCapable,Inkjet Capable, Fax Capable.Thickness: 103-110 umSurface roughness TS ml/min: 75-175Surface roughness BS ml/min: 100-200Bending stiffness MD: >110 MnBending stiffness CD: >50 MnCIE whiteness: 148-152Cobb Test: 27-33 g/m2 27-33KEY PERFORMANCE:No jam in tocopy machineNo double feedStay flat after copyingLeave no dust in the copy-machineNice appearance-white and cleanNice touch-smooth and bulkyNo see through-print both sidesBeen developed for : tocopy Mac