Sheet Size:210mm x 297mm, International Size A4 Quality: Imported 100% Virgin Wood Pulp Whiteness = 102-104%,Natural White Capability: High Speed Copying100ppm, Laser Capable,Inkjet Capable, Fax Capable. Thickness: 103-110 um Surface roughness TS ml/min: 75-175 Surface roughness BS ml/min: 100-200 Bending stiffness MD: >110 Mn Bending stiffness CD: >50 Mn CIE whiteness: 148-152 Cobb Test: 27-33 g/m2 27-33 KEY PERFORMANCE. No jam in photocopy machine No double feed Stay flat after copying Leave no dust in the copy-machine Nice appearance-white and clean Nice touch-smooth and bulky No see through-print both sides Been developed for : Photocopy Mac