Shoulders
Traps
Set pulleys high on cable crossover machine.
Stand in center. Grab left handle with right hand, right handle with left hand.
Arms slightly bent, crossed in front at shoulder height.
Keep slight bend in elbows. Pull handles outward and backward in wide arc.
Focus on squeezing rear deltoids and upper back.
Pause briefly when arms are extended wide.
Slowly return to starting position with control.
Repeat.