Wartenberg wheel

A Wartenberg (also Pinwheel Wartenberg or anesthesiometer to Wartenberg ) is a medical instrument for the neurological examination of pain perception. In this case, the wheel usually made ​​of stainless steel is rolled with star-shaped pointed pins systematically through the skin. The Wartenberg wheels is named after the neurologist Robert Wartenberg and is rarely used for reasons of hygiene.

Wartenberg wheels are often used in BDSM area as toys.