The eccentric ring and {TAIL ~ shaft} are encapsulated by the ball, the ball material passing through and around the eccentric ring and {HEAD ~ shaft} 
The eccentric ring and { TAIL ~ shaft } are encapsulated by the ball , the ball material passing through and around the eccentric ring and { HEAD ~ shaft }
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD