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