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Narrow, shoulder-width dips primarily train the triceps, with major synergists being the anterior deltoid, the pectoralis muscles (sternal, clavicular, and minor), and the rhomboid muscles of the back (in that order). Wide arm training places additional emphasis on the pectoral muscles.
Exercise machine intended to a series of exercises: deadlift, shrug, lunge, push press, chest press, squats with weights.
Exercises can be performed with either both arms simultaneously or with alternating arms.