{HEAD ~ The buffer element} is disposed on {TAIL ~ the lateral wall} with its lateral side facing the lateral wall of the supporting base 
{ HEAD ~ The buffer element } is disposed on { TAIL ~ the lateral wall } with its lateral side facing the lateral wall of the supporting base
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH