RPM Circle Droop Gauge 4.0 - 6.6mm Includes droop blocks

RPM  Circle Droop Gauge which includes two rounded 10mm droop blocks with magnets for a nice and neat storage solution. Simply slide  the blocks into the Gauge and the magnets do the rest for you. 
The Droop Gauge offers 4.0 to 6.6mm for adjusting the droop on 1:10 scale onroad cars!