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