This exercise uses cables to isolate and work the triceps (muscles on the back of the arms).
Muscle group: Triceps
Place a flat bench with the end towards a weight stack.
Attach a short straight bar to the pulley and lower the pulley to the bottom of the stack.
Lie face up on the bench and grasp the bar with a narrow overhand grip.
Starting with your arms extended lower the bar towards the bar towards the stack by bending your elbows.
Slowly extend your arms upright and return to the starting position.
Keep your elbows level throughout the exercises.