You are buying four (4) NORS Auveco springs. They are headlight adjuster springs for 1968-1971 Mercury cars (see applications below). Replaces the Ford part number C6AZ-13031-C.
1969-1970 Cougar1968-1971 Comet
You must compare your application to the sizes and the pictures that we have provided as Ford used several springs that looked the same but had different measurements.