• Checks ball joint wear and disc rotor run-out • Checks tire and wheel run-out, gear backlash, valve guide wear, etc. • Corrosion resistant • Chrome plated 12" flex armMeets all state inspection requirements • This Disc and Rotor Flex Chrome Kit includes both Disc and Rotor/Ball joint gage and 14 LED ultra-bright flashlight. Features include quick release mounting bracket, Indicator has 0-1" travel and .001" graduation, 3 "AAA" batteries included. All packed in a convenient, shop-hardened case.