{TAIL ~ The cap} is tapered in shape, having a wide opening at the end which connects to the cylinder so as to minimize {HEAD ~ the risk} of contact with the needle when the cap is positioned on the cylinder 
{ TAIL ~ The cap } is tapered in shape , having a wide opening at the end which connects to the cylinder so as to minimize { HEAD ~ the risk } of contact with the needle when the cap is positioned on the cylinder
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH