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