... 70gsm Whiteness:92-96%,98-100%,102-104% Item copy paper ,A4 paperMaterial100% wood pulpSizeA4, A3, Letter size(8.5x11), ... reams6500 reams70gsm8200 reams4100 reams8800 reams6700 reamsKey performanceNo jam in photocopy machineNo double feed Stay flat after copyingLeave no dust ... bulkyNo see through-print both sidesBeen developed for: Photocopy Machines, Laser Printers, Ink-jet Printers, Fax Machines