1. 100% virgin wood-pulp 2. whiteness: 103%, 110% 3. A4/8.5x11", 70/75/80gsm 4. hight quality Itemcopy paperMaterial100% wood pulpSizeA4, A3, Letter size ... (8.5x11),Legal size(8.5x14)Base Weight80gsm, 75gsm, 70gsmWhiteness94-96%, 98-100%, 102-104 ...