The magnet may include a north pole and a south pole, {HEAD ~ the at least one recessed region} positioned between the north pole and {TAIL ~ the south pole} 
positioned between
The magnet may include a north pole and a south pole , { HEAD ~ the at least one recessed region } positioned between the north pole and { TAIL ~ the south pole }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL