The product is a third brake light stop lamp specifically designed for 1989-1994 Geo Metro 4-door vehicles. It is meant to be placed at the rear window of the car to enhance visibility and safety on the road. This tail light assembly is a crucial component of the vehicle's lighting system, ensuring that drivers behind can easily see when the brakes are applied. Perfect for maintaining the functionality and aesthetics of a Geo Metro, this replacement part helps drivers comply with road safety regulations.