... shape:O/D-shaped OEM/ODM:Accepted Creative design 20 ring binder Breakthrough traditional style, high quality ... leather PUColor/logo SelectionCustomedRing shapeO-shaped, D-shapedPrintingCustomer's design or logoUsagePromotion gift, store pens , pencils , rulers, ... characteristic of PPPP is a half crystallization thermoplastic plastics. has the high resistance to impact, strong mechanical ...