A4 Multi-purpose paper Usage: 2side copy, fax,printing, laser, injet,writing, Quality: 100% woodpulp Brightness: 92%-96%; 98%-105% brightness Size:A4, A3, B5 and letter sizeare also available. Packing: 500 sheets/ream, 5 reams/carton, about 19mt in one 20ft container;