RCP's 8.5" Pot Brush Blue with Stiff Bristle is a must-have for washing and prepping a vehicle, built to tackle tougher grime that softer brushes leave behind. Its heavy duty construction ensures this brush will last for a long time, making it a professional choice for the serious auto detailer. We recommend using it with plenty of soapy car wash solution to scrub away stubborn dirt while keeping surfaces lubricated and protected. The stiff bristles deliver extra scrubbing power for wheels, tires, and other heavily soiled areas. This brush paired with a quality wash solution and a plush drying towel will take your detailing experience to the next level.