<human>:  Can you tell me which line in a car is the brake line?
<bot>: The brake line is a pipe connected to the brakes that helps carry hydraulic fluid. It’s usually made of metal and runs from the master cylinder to each brake line near the wheels and brakes. If there’s a leak in the brake line the fluid is unable to supply the brakes, which can cause serious safety concerns. The brake line is typically labeled with its name, and is contained within the brake hydraulic system of the vehicle.