PREPARATION
1.Take an overhand grip on the bar
  and dead lift to the front of 
  your thighs; then clean to the
  front of your shoulders.

2.Press the barbell above the 
  head. Breathe out.

EXERCISE
1.Breathe in as you bend your
  elbows, lowering the bar behind
  your head. Keep your back
  straight and knees slightly
  bent.

2.Breathe out as you straighten
  your elbows, pressing the bar
  back above your head. You should
  feel the muscles in the back of
  your arms working.

FINISH
1.Lower the bar to the front of
  your shoulders; then lower to
  the floor.

To perform this exercise safely,
you should use only a light weight
to begin with.

MAINLY FOR: Triceps