1) 100% wood pulp 2) Size:A4,A3,8.5"x11",11*17'' 3)B.W.:80gsm,75gsm,70gsm 4)Whiteness: 98-100%,102 ... -104%,110% Itemcopy paperMaterial100% wood pulpSizeA4, A3, Letter size(8.5x11),Legal ... size(8.5x14)Base Weight80gsm, 75gsm, 70gsmWhiteness94-96%, 98-100%, 102-104 ...