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