The Pagid Disc Brake Pad Wear Sensor Set - 355251411 is a set of sensors designed for use with disc brake pads. These sensors are used to detect when the brake pads are worn down and need to be replaced. They are compatible with a variety of vehicles and are made with high-quality materials for durability and reliability. The set includes two sensors, one for each side of the vehicle, and can easily be installed on the brake pads. These sensors help to ensure the safety and efficiency of your vehicle's braking system.