Amber Glitter Peterbilt Brake Knob. 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. Also features a set screw in the collar to align the knob with logos, etc. to keep them tight.