In plan view the pad has an elongated egg shape, matching {HEAD ~ the shape} of the end of {TAIL ~ the butt} 
In plan view the pad has an elongated egg shape , matching { HEAD ~ the shape } of the end of { TAIL ~ the butt }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL