These are engineered and designed specifically for the racer.
A slot designed for carrying and handling between cars. 
Holes designed for hanging and storage. 
extra 3" break at the bottom to clear the bulge in the tire for excellent accuracy. 
Large and small slit for any tape measure head. 
The extra break at the bottom adds inscreased strength to negate flexing. 
1/8 inch thick aluminum.
No tape measure included.
This product is available for a custom team sticker as well like the second photo. Please call the store for more details on custom designs.