BLUE HEAVY DUTY WHEEL AND FENDER DETAILING BRUSH - LONG HANDLE Blue Heavy Duty Wheel and Fender Detailing Brush - Long Handle is a tough detailing brush that has polypropylene bristles that are stiff and crimped to provide extra scrubbing action. These Blue Bristles are resistant to heat, acids, chemicals, and solvents, making this brush a tough tool for heavy-duty cleaning. The Bristle Wheel and Fender Brush for Auto Detailing is 20 inches long and great for those hard to reach areas.