An electrically conductive, metallic, L shaped rod extends through {TAIL ~ the common passageway} formed by both holes of the pair of {HEAD ~ toroid magnets} 
An electrically conductive , metallic , L shaped rod extends through { TAIL ~ the common passageway } formed by both holes of the pair of { HEAD ~ toroid magnets }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD