This product is a genuine VW/Audi circuit breaker with the part number 443937105B. It is designed to interrupt the flow of electricity in the event of an overload or short circuit, protecting the electrical system of the vehicle. This circuit breaker is an essential component for maintaining the safety and functionality of the vehicle's electrical system. It is compatible with various VW and Audi models and is a reliable replacement for damaged or malfunctioning circuit breakers.