These are new exact reproductions of the original Amphicar metal fuel line that runs from the fuel pump to the carburetor. The end fitting are machined from solid brass. Each part has been mounted on and tested on a running Amphicar motor. This part fits cars with the original SOLX B30PSEI carburetor. Contact us about supplying fuel lines for the newer replacement carbs such as the B33PSEI as we do have fittings for those models also.