Tube and Valve Brush, Bristle Material Polyester, Handle Material Not Applicable, Brush Diameter 3.54 in, Brush Length 6 1/2 in, Handle Length Not Applicable, Bristle Color Yellow, Chemical Resistant Yes, Application Pipes and Tubes, Bristle Firmness Medium, Bristle Length 2 3/8 in, Brush Width 3 5/8 in, Color Coding System Yes, FDA Compliant Yes, Features Fda Compliant, Grip Material Polypropylene, Overall Length 7 1/8 in, Temperature Resistant Yes