Product name:PBT White synthetic hollow brush filament for paint brush Diameter: 0.07-0.25mm raw material:PBT and PET Color: white, black, orange,red, according to your requirement size, 44mm-230mm packaging,carton, according to your requirement Cross-section,Round solid, hollow, diamond shaped Certification,ASTM, ROSH Delivery, about 30 days MOQ, 200KG