This type of a diagnostic probe with replaceable heads is a multi-purpose instrument, standing as a modified design of the diagnostic probe with a roller.

The advantage of this probe is three replaceable tips of different size. These make it possible to apply this tool for locating and massaging the correspondence points. The size of the head diameter varies with the area occupied by the correspondence system. The replaceable tips are housed on the roller-massager handle.
The roller massager is intended to stimulate the correspondence areas located in the flat irregular            surface

The corrugated side surface of the handle could be used to massage the hands, feet, finger and toes.