The Park Tool TS-2DI Dial Indicator Gauge Set is designed for use with the TS-2 and TS-2.2 Truing Stands, providing precise measurements for bicycle wheel truing. The gauge set includes a dial indicator that allows for accurate measurement of wheel and rim alignment, helping cyclists ensure their wheels are perfectly trued for optimal performance. With its black color and compatibility with Park Tool truing stands, this tool is a must-have for any cyclist looking to maintain their bike's wheels with precision and ease.