Ken-Tool KEN29980 TPMS Sensor Saver System Starter Kit (reCore&acirc;&bdquo;&cent;) SIMPLE. Everything you need to repair the corroded valve core with a new, corrosion-proof valve core FAST: With a little skill, tech can install a new valve stem in 10-15 minutes Repair TPMS sensors without even taking the tires off the vehicle Packaged in blow molded storage case