{HEAD ~ The barrier member} can have a construction that is flexible in both directions along the length and {TAIL ~ width} of the barrier member 
{ HEAD ~ The barrier member } can have a construction that is flexible in both directions along the length and { TAIL ~ width } of the barrier member
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH