Not sure where it's at, but maybe black shoe polish?
... if it's somewhere your clothing isn't gonna rub
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"God is great, beer is good and people are crazy"
2010 2SS IOM/IOM L99 Black Rally Stripes, Polished Wheels, Loudmouth II, Rotofab CAI, IOM Heritage Grille,Tune by Jeremy Formato (Fasterproms Tuning).