... , brochures and documents, all of your presentations, proposals, reports, manuals binding.Material: PVCSize: 6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm ... , 42rings, 76rings, 84rings, etc.Regular specification for 21 Rings Plastic Binding Comb: SizeInchPcs/BoxPcs/CartonCBM/CartonG.W/CartonN.W/Carton6mm1/4 ...