Adjustable ring structure is provided in {HEAD ~ accordance} with {TAIL ~ the teachings} of the present invention wherein a ring shank is hinged to define first and second arcuate elements having an aperture therebetween 
Adjustable ring structure is provided in { HEAD ~ accordance } with { TAIL ~ the teachings } of the present invention wherein a ring shank is hinged to define first and second arcuate elements having an aperture therebetween
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH