The retaining clip has {HEAD ~ a ring portion} received in {TAIL ~ a groove} in the outer surface of the neck portion and a series of resilient teeth extending outwardly from the ring portion 
The retaining clip has { HEAD ~ a ring portion } received in { TAIL ~ a groove } in the outer surface of the neck portion and a series of resilient teeth extending outwardly from the ring portion
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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