A boot 1, wherein {HEAD ~ the said end} of the lever is formed as {TAIL ~ a round ended lip} for engagement with said fixed seat 
A boot 1 , wherein { HEAD ~ the said end } of the lever is formed as { TAIL ~ a round ended lip } for engagement with said fixed seat
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH