This is an exact duplicate of the original factory supplied lug nut cover for all 73-76 Porsche 914 models with fuchs, mahle or styled steel wheels and is 19 mm in size.
The finishing touch for your old style 8 spoke & riviera style wheels. Short caps can be used on old style 8 spoke & riviera style wheels. Short cap may not clear on i.d. Of some particular applications. Logo area on 9567 is 43.5mm i.d.