... 1)high tufting speed round brush tufting machine 2)CNC automatic cotroll, ... and durable.4Material of Brush HandlePolyethylene, polystyrene, return materials, wood5Material of FilamentsPP,nylon,bristle,stainless steel,brass ... hole)15mm-75mm9Diameter of hole2mm-4mm10Colors of Brush FilamentsTwo color11Maximum Tufting Speed.6 holes/second12AC ... is very easy to replaceable//// round brush making machine