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 and documents, all of your presentations, proposals, reports, manuals binding.Material: PVCSize: 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,25mm,28mm,32mm,38mm,45mm,51mmColor: Clear, black, ...