... :A4/CF,customed Ring shape:O/D-shaped OEM/ODM:Accepted a5 ring binder with leather Breakthrough traditional ... portfolio case, clear bag, document bag, handy case, clear holder, name card holder, business card holder, cd holder, photo album, ring binder ... Offset Printing & Silkscreen Printing & Hot StampingThe specification of ring binder SizeA4 /FC or customers' requirementsMaterialEco-friendly PP, PVC, ...