This is a front window divider kit for 1955-1958 Spartans which have just one large opening for the 3 front or sometimes rear windows (double ender models). This kit includes 2 aluminum dividers with foam seals, 6- bolts & nuts and acorn nuts. This kit is almost exactly like the original ones with one exception. In order for the foam seal to pull down tight we had to use bolts with nuts verses the one side of the aluminum strip being tapped with threads in the aluminum. By doing it this way you can get them nice and tight so they will not leak. These dividers go between the curved windows and the center window. This is just for 1 side. If you need both sides, you will have to order 2 kits.