A brake pad is a crucial component of a vehicle's braking system. It is made of friction material and is designed to press against the brake rotor when the driver applies the brakes. This action creates the friction needed to slow down or stop the vehicle. Brake pads are typically found in disc brake systems, which are common in modern cars. Over time, brake pads wear down due to constant use and need to be replaced to maintain effective braking performance. Regular inspection of the brake pads is essential for vehicle safety, as worn pads can lead to decreased stopping power and potential damage to other components, such as the brake rotor.