Your Chevy OBS headlight knob is probably worn out or broken and we have the solution. Our billet OBS 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 OBS headlight knob doesn't require tools for installation, simply pull the factory headlight knob off and press your billet OBS knob on! A light passage is drilled into the billet OBS knob to illuminate when the lights are switched on.