All new Re-released translucent/solid set up block. These are a must have for builders and racers. You can see what the front and rear tire contact patch looks like, You can also see where the rail is riding along the entire car and watch how the pickup shoes. Rail heights are honed, Collect them all. Please allow 1 extra day of processing. Rail height is made to order.
-If your unsure of what rail height you need please see suggestions below.