Both the tubular body and {TAIL ~ the flange} consist of {HEAD ~ flexible, resilient material}, e.g., elastomeric material 
Both the tubular body and { TAIL ~ the flange } consist of { HEAD ~ flexible , resilient material } , e.g. , elastomeric material
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH