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