Banded Pushdown

Hang the band on a stable overhead bar or a hook.

Hold the band with both arms with palm facing down

Pull the band down and fully extend the elbow.

Keep the chest and take a deep breath at the bottom

The movement should happen only at the elbow 

Keep the shoulder blades pushed behind though out the movement.

Fully extend the elbow at each rep and squeeze the triceps at the end of the movement