{TAIL ~ The method} 1 wherein the strip of foam rubber has {HEAD ~ a rectangularly shaped cross section} 
{ TAIL ~ The method } 1 wherein the strip of foam rubber has { HEAD ~ a rectangularly shaped cross section }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD