{HEAD ~ a second snubber inner member} having {TAIL ~ a doubly convex outer surface portion} sharing said central longitudinal axis 
having
{ HEAD ~ a second snubber inner member } having { TAIL ~ a doubly convex outer surface portion } sharing said central longitudinal axis
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH