Checkpoint (33mm) Loose Wheel Nut Indicator

Checkpoint (33mm) is the original loose wheel nut indicator for commercial and heavy duty applications. Accurate and simple-to-use, Checkpoint point-to-point indicators are installed on each wheel nut with each pair of indicators pointing directly at each other. This simple system provides a clear visual pattern for the driver, indicating which wheel nuts need tightening. Packaged 100 units/bag.