Tube and Pipe Brush, Bristle Material Polyester, Brush Diameter 3.5 in, Brush Length 5 3/4 in, Handle Length Not Applicable, Bristle Color Red, Chemical Resistant Yes, Acid Resistant Yes, Application Pipes and Tubes, Bristle Firmness Medium, Bristle Length 3 1/2 in, Brush Width 3-1/2 In., Color Coding System Yes, FDA Compliant Yes, Handle Color Red, Overall Length 6 1/8 in, Temperature Resistant Yes