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 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.