The reflector comprises {TAIL ~ an elongated, notched, thermoplastic channel} like reflector having {HEAD ~ internal and external channel surfaces} 
The reflector comprises { TAIL ~ an elongated , notched , thermoplastic channel } like reflector having { HEAD ~ internal and external channel surfaces }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD