Further, this configuration of resilient material 44 permits of great ease of {HEAD ~ construction} through {TAIL ~ coextrusion techniques} 
through
Further , this configuration of resilient material 44 permits of great ease of { HEAD ~ construction } through { TAIL ~ coextrusion techniques }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL