{HEAD ~ A radially outward surface} of each of the bars is connected to {TAIL ~ a respective radially inner surface} of each of the rings 
{ HEAD ~ A radially outward surface } of each of the bars is connected to { TAIL ~ a respective radially inner surface } of each of the rings
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH