The Wartenberg Neurological Pinwheel is used by orthopedists, neurologists and neurosurgeons to evaluate their patients’ ability to feel sharp or pointed contact with the skin. This allows healthcare providers to test for nerve damage or dysfunction. This instrument is made from stainless steel and has a handle of approximately 7 inches in length. The wheel itself has evenly spaced radiating sharp pins and rotates as the healthcare professional rolls it along the patient’s skin. A disposable version can also be purchased in plastic instead of steel.