The cap includes a plurality of {HEAD ~ annular ridges} which snap fit over corresponding {TAIL ~ annular grooves} formed on the exterior of the syringe cylinder 
snap fit over corresponding
The cap includes a plurality of { HEAD ~ annular ridges } which snap fit over corresponding { TAIL ~ annular grooves } formed on the exterior of the syringe cylinder
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH