Detailed Product Description we make chungking boiled bristles ,various brush filament or synthetic filament with PBT, PET, PP, PE, PS, PA ... , industrial, We can produce many kinds of synthetic filament for paint brush in different diameter,length and color ... 51mm - 900mm --- non-flagged Material: polyester/pet Solid synthetic bristles for making paint brushes and brooms Colour: white, black, ...