{TAIL ~ a case} substantially equal in {HEAD ~ size} to a conventional glow starter case; and 
{ TAIL ~ a case } substantially equal in { HEAD ~ size } to a conventional glow starter case ; and
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH