... Size:A4/CF,customed Ring shape:O/D-shaped OEM/ODM:Accepted a5 ring binder with leather Breakthrough traditional style ... holder, business card holder, cd holder, photo album, ring binder, and offset printing pp OEM products etc.Material: Ec- ... : Offset Printing & Silkscreen Printing & Hot StampingThe specification of ring binder SizeA4 /FC or customers' requirementsMaterialEco-friendly PP, PVC, leather ...