{TAIL ~ The base member}, {HEAD ~ post}, and closure member may be composed of a wide variety of materials 
{ TAIL ~ The base member } , { HEAD ~ post } , and closure member may be composed of a wide variety of materials
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH