Descriptions/Key performance:- Brightness: 102% - 106%- Size : A4 (210mm x 297mm)- Material: 100% Wood pulp.- Whiteness: CIE167- Opacity : 95%- Ream box : 5 Ream- Quality : Very High/Grade A- Color : White- Grade : All purpose Premium Paper- Sheet in Ream : 500- Thickness : 110um - 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