Turbuster Leg Raise Chin Dip is a three in one, space efficient machine tailored to your specific workout needs. Turbuster fitness premium benches and racks seamlessly integrate with other pieces of the line to complete a family of high quality strength training products. It is a simple but very effective training method for the upper body and arms. With the above exercises, you get to train both the broad back muscle, biceps, and shoulders. The narrower your grip is chin ups, the more you intensify your training around the biceps. The dip function gives you training of your entire upper body, but the muscle groups that will be hardened are the triceps, shoulders, and chest muscles.