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