A magnetic body 1, wherein {TAIL ~ said parallel surfaces} intersect {HEAD ~ said surface means} at 90° angles 
A magnetic body 1 , wherein { TAIL ~ said parallel surfaces } intersect { HEAD ~ said surface means } at 90 ° angles
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH