Streetwize Brake Cleaner is a fast-acting cleaner for brake discs and calipers - keeps discs and calipers looking clean through alloy wheels and also helps stop disc brake squeal.Helps Improve Braking Performance: Brake cleaner can help with uneven braking where this is caused by dust and contaminants on disc surfaces. Quickly dissolves and washes away brake lining dust, brake fluid seepage and road film.Use on Most Vehicle Braking Systems: Streetwize Brake Cleaner can be used on disc brakes (calliper, pads and rotors), drum brakes (shoes, cylinders and springs)Keeps Calipers and Discs Looking Good: With alloy wheels where the calipers and discs are on show, brake cleaner is an important part of your valeting routine