Benefits:
Isolated strength/hypertrophy of the Pectoralis and Anterior Delts.
Movement:
Lie flat on a bench stationed between the lower pulleys. Grasp the handles and lie down with elbows slightly flexed. Lower the weight carefully to appropriate depth as determined by the Active ROM (Range Of Motion) or until arms are parallel to the floor with elbows flexed. Contract chest muscles and raise to starting position.
Do not drop down all the way to the floor, Do NOT touch the floor either. Advanced lifters can go slightly beyond parallel given you are in total control of the movement.