The straight-arm cable pull-over is an exercise that focuses on the muscles of the lats (latissimus dorsi) and chest using a cable stack and a flat bench. It is most commonly used for higher reps, such as 10-15 or more, in muscle-building workouts. It is also an effective substitute for dumbbell pull-overs or a pull-over machine, if you don't have access to them or they aggravate your shoulders.