Electric Guitar Killswitch , Black Aluminum & BLUE LED Premium Mod by IRON AGE Rugged Aluminum construction for superior durability that can really take a beating! A sleek original look (no more obnoxious killswitch boxes or tacky buttons) A slightly raised button allows you to easily pinpoint its location without missing a beat. Crisp button action & smooth release for confident playability. Normally Open Switch, Pre-wired contacts to facilitate installation. Includes a rubber gasket to seal and protect your guitar's finish& 2 resistors for the LED circuit. Drill Bit & Battery "C-Kit" is also available seperately.