Silver Universal Security Aluminum Speed Car Racing Hood Pins Lock Bolt Kit Set Made with a lightweight powder-coated aluminum for strength and ability. It also gives a stealthy and smooth racing look to the vehicle. Will help secure enging bay and add a positive look on vehicle's hoods. Universally fits any vehicle with a carbon fiber, fiber glass hood, or factory hood latch assembly. 1.50" Flat Surface Diameter/0.50" Diameter Bolts Professional installation is recommended. Drilling is required to install the pins correctly to the hood.