Item copy paper Material 100% virgin wood pulp Size A4, A3, 8.5x11,8.5x14 Base Weight 80gsm, 75gsm, 70gsm Whiteness 102%-104% 110% Packing 500 sheets per ream, 5 reams per carton(box) Load Qty(20ft) GSM A4 A3 8.5x11 8.5x14 80gsm 7800 reams 4000 reams 8200 reams 6300 reams 75gsm 8000 reams 4100 reams 8500 reams 6500 reams 70gsm 8200 reams 4200 reams 8800 reams 6700 reams 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 Machines, Laser Printers, Ink-jet Printers, Fax Machines