Skullcrusher Dumbbells

Step 1. Hold the dumbbells and lay down on a flat bench in such a way that around 1/4 of your head is over the edge. Stretch arms straight up and then lean dumbbells away from your toes to a 10-20 degree angle. Keep upper arm at this angle throughout exercise. Dumbbell shall not be amed at your head, but away over your head. This will maximise gain from exercise with load on triceps all the time.

Step 2. Pay attention to your elbows and arms: only the triceps are doing the work, the rest of the arms should not move.