A gel version of the original pH controlled wheel cleaner designed for wheels that may have been neglected or have an unusually heavy amount of brake dust or dirt. Like the High Performance Wheel Cleaner, it will not harm the wheels or other braking components. The gel formula sticks better on vertical surfaces. Spray it on, allow it to sit for up to two hours, touch stubborn spots with the included sponge or a wheel brush and hose off.