Amazon.com: SUPVOX 6pcs Guitar Knob Guitar Head Tuning Knob Guitar Head Knob Loose Tuning Peg Guitar Tuning Guitar Tuner Pegs Left Tuning Peg Guitar Replacement Head Knob Major Zinc Alloy Ukulele :
I was tuning the goddamn G string then it detuned and the tuning peg felt loose and came off. Now, the machine head has this bit sticking out, what could've happened and