Spike Bullet German Helmet Valve Stem Covers - Set of 4
From ClassyChevUSA.com

Spike Bullet German Helmet Valve Stem Covers - Set of 4
Here we have a cool set of four chromed plastic Spike Bullet valve stem covers. They screw onto the valve stems. They are 1.25" x 1", and have a brass threaded insert.
UPC 710270700387