Tube and Pipe Brush, Bristle Material Polyester, Handle Material Not Applicable, Brush Diameter 1.57 in, Brush Length 7 in, Handle Length Not Applicable, Bristle Color Yellow, Yes, Acid Yes, Application Pipes and Tubes, Bristle Firmness Medium, Bristle Length 1 5/8 in, Brush Width 1-19/32 In., Color Coding System Yes, Compliant Yes, Handle Color Yellow, Overall Length 7 1/8 in, Temperature Yes