- All effects are under the surface and smooth to the touch.
- 2-1/4" Diameter
- For threaded dash air brake valves (threaded bendix type used from 90's through today)
- Made with a polished billet collar with the correct built in thread.
- Includes a set screw in the collar to align the knob with logos, etc. to keep them tight.
- Sold Individually
- Quality Made Product