ArTLaB-Premium German Wartenberg Neuro Pinwheel Diagnostic Instrument Sensory Wartenberg Pinwheel 1,3.5,7 Head Strong Wheel Stainless Steel Nerve Tester (Set of 4 (1,3,5,7 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.