{HEAD ~ The integral tubular section} ranges from 2.5 mm to {TAIL ~ 3.5 mm} in inner diameter 
{ HEAD ~ The integral tubular section } ranges from 2.5 mm to { TAIL ~ 3.5 mm } in inner diameter
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH