This is a set of matching high and low horns off a 1977 Mercedes Benz 450SL. They both work as they should and are nice and loud. Somehow one of them has a lot of dirt and oil that should be cleaned off. The other could use a light scrubbing. Overall this will be a great one to work with. You cannot beat the original parts. Get this for now or down the road. Overseas shipping no problem.