{TAIL ~ The roller} receives the heat emission part and has {HEAD ~ at least one opening} to provide heat to a target  
{ TAIL ~ The roller } receives the heat emission part and has { HEAD ~ at least one opening } to provide heat to a target
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH