The arrow 260 may also be used to indicate {HEAD ~ the orientation} of {TAIL ~ the magnet} 120 
The arrow 260 may also be used to indicate { HEAD ~ the orientation } of { TAIL ~ the magnet } 120
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH