Tube and Pipe Brush, Bristle Material Polyester, Brush Diameter 2 in, Brush Length 5 1/4 in, Handle Length Not Applicable, Bristle Color Yellow, Chemical Resistant Yes, Acid Resistant Yes, Application Pipes and Tubes, Bristle Firmness Stiff, Bristle Length 2 in, Brush Width 2 In., Color Coding System Yes, FDA Compliant Yes, Handle Color Yellow, Overall Length 5 1/2 in, Temperature Resistant Yes