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