This is a Ford oil fill tube that has been brush polished.
Unlike some of the other oil fill tubes, this is designed to look and act as Original Equipment (O.E.) replacements.
These have baffles installed inside to keep debris from entering the engine. This is the way Ford designed it, and this is the way it's made. Like the original Ford pieces ours are tapered on the end for easy installation.
What you were purchasing:
1) Ford FE oil fill tube (as seen in picture) with baffle installed, 1.380" O.D.
1) Oil fill tube installation tool