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Here is a shooter knob with a Nuclear Symbol in the end of it. It has a 10.2mm hole that you can glue in the shooter rod (that is available from Pinball Life) with epoxy glue, set and then install into your game to give it a cool unique look.
To personalise it you could even paint in the pattern with a highlight colour (paint in and wipe off the excess). There are various metal options with the precious and semi precious metals being the best option for a beautiful super smooth and polished finish or going with the various stainless steel options for a mild textured finish but still look great and much better than a standard plastic knob.
The diameter of the knob is approximately 1 & 1/2inches dia at the widest point.
Good for the TNA and Walking Dead games
If you would like to see other shooter rod knobs search - swinksshooter