An electro magnetic field inducing circuit is mounted on {HEAD ~ the retrieving member} and extends to {TAIL ~ the handle} 
An electro magnetic field inducing circuit is mounted on { HEAD ~ the retrieving member } and extends to { TAIL ~ the handle }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL