Your Chevy NBS headlight knob is probably worn out or broken and we have the solution. Our billet NBS headlight knob not only replaces your bunk factory plastic knob but adds a little pizzazz to your interior as well. The 6061-T6 aluminum is CNC machined with precision to offer a snug fitment unlike other aftermarket options out there that fall out with ease. Speaking of ease, the billet NBS headlight knob doesn't require tools for installation, simply pull the factory headlight knob off and press your billet NBS knob on! A light passage is drilled into the billet NBS knob to illuminate when the lights are switched on.