{HEAD ~ The cage} opens via {TAIL ~ a draw string type opening} to capture the helmet therein and closes to prevent the helmet from being removed from the cage 
opens via
{ HEAD ~ The cage } opens via { TAIL ~ a draw string type opening } to capture the helmet therein and closes to prevent the helmet from being removed from the cage
HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH