Parts of the wand
This image shows you the basic outside parts of your mechanical Violet Wand.
The housing part of the wand is two separate parts that are twisted and locked together, with the adjustment knob helping to ensure the case doesn’t become loose. It is a best practice to hold the wand on the rear housing since the front housing can arc through the tiny space where the two halves connect. If you touch the nose cone or the worse the aperture you are guaranteed to get a decent shock.