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