FIG 2 further shows that {TAIL ~ covers} 21 are arranged between {HEAD ~ the latching means} 18, 19 
FIG 2 further shows that { TAIL ~ covers } 21 are arranged between { HEAD ~ the latching means } 18 , 19
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH