*For easy remove of of diameter 4mm~
 diameter 10mm fuel & vacuum hose.
*The pliers have two different color of
  jaw black & silver color, black color jaw
  for tube end & silver jaw for hose end.
*On the black jaw have a "digs" can into
  small tube & hose.*Taking off tight fitting
  fuel, vacuum and coolant hoses can be
  a real challenge... Worse if they are old.
*Simply insert between the hose and the
  fitting (or grip the hose) and apply gentle
  pressure.
*Hose slides off with no damage