We are offering double a4 copy paper.Product details- brand: double a (original)- size: a4 (210mm x 297mm)- substance: 80gsm- brightness: 102-104% above - color: white - whiteness: cie167- grade: all purpose premium paper - sheet in ream: 500 - roughness: 140mlmin- roughness: 140mlmin - thickness: 110um - opacity: 95%- ream box: 5 ream - quality: very high key performance- no jam in photocopy machines - no double feed- stay flat after copying (even in laser)- leave no dust in the copy machine - white and clean, smooth and bulky - no see through pring in both side- best result in photocopy machines - laser printers, inkjet printer, fax, etc. features & benefits- perfect for high-quality printing and copying - super high whiteness produces outstanding clarity and contrast for all graphics and text- user-friendly box design with built-in handle for easy carrying, tear slot perforation for easy access to the reams and label for filing.- precision-cut edges for trouble-free performance outstanding packaging- standout premium. - special protective moisture - proof wrapper.- economic box packaging details- 500 sheets per ream - 5 reams per box.- 1560 boxes per 20ft container (with pallet) - 1600 boxes per 20ft container (without pallet). - 7800 reams total in one 20fcl (with pallet).- 8000 reams total in one 20fcl (without pallet).