{TAIL ~ The apparatus} 4, wherein the projecting part is integrally formed with a main body of {HEAD ~ the mask} 
{ TAIL ~ The apparatus } 4 , wherein the projecting part is integrally formed with a main body of { HEAD ~ the mask }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD