ArTLaB-Premium German Wartenberg Neuro Pinwheel Diagnostic Instrument Sensory Wartenberg Pinwheel 1,3.5,7 Head Strong Wheel Stainless Steel Nerve Tester (3 Head)

A Wartenberg wheel, also called a Wartenberg pinwheel or Wartenberg neurowheel, is a medical device for neurological use.

It was originally designed by Dr Robert Wartenberg to test nerve reactions (sensitivity) as it rolled systematically across the skin.

A Wartenberg wheel is generally made of stainless steel with a handle of approximately seven inches in length.

The wheel, which has evenly spaced radiating sharp pins, rotates around as it is rolled across the flesh.