{TAIL ~ A support arm} which utilizes a material with material properties such that {HEAD ~ the support arm} may be easily placed into a position within a range, yet at the edges of this range have elastic properties 
{ TAIL ~ A support arm } which utilizes a material with material properties such that { HEAD ~ the support arm } may be easily placed into a position within a range , yet at the edges of this range have elastic properties
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH