THIS IS A NEW PAIR OF 1955 CHEVROLET WHEEL HUB GREASE CAPS. THESE CAPS PRESS OVER THE OUTSIDE EDGE OF THE FRONT HUBS. IF YOUR HUBS HAVE CAPS THAT PRESS ON THE INSIDE OF THE HUB, THEN YOU HAVE 56-60 CHEVY HUBS AND YOU NEED THE 56-60 CHEVY CAPS WHICH I ALSO HAVE. SKU#1329