... Ring Comb Color:black,blue,green,yellow,red,white,clear Size:6mm-51mm avaliable 21rings,84rings and other Notebook for PVC Plastic ... Binding Ring CombApplication:It is suitable for professional books, brochures ... , 76rings, 84rings, etc.Regular specification for 21 Rings Plastic Binding Comb: SizeInchPcs/BoxPcs/CartonCBM/CartonG.W/CartonN.W/ ...