A selector is movable into different positions relative to the handle and relative to the weight plates for coupling selected numbers of left weight plates to the left end of the handle and {HEAD ~ selected numbers} of right weight plates to {TAIL ~ the right end} of the handle 
to
A selector is movable into different positions relative to the handle and relative to the weight plates for coupling selected numbers of left weight plates to the left end of the handle and { HEAD ~ selected numbers } of right weight plates to { TAIL ~ the right end } of the handle
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH 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 OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH