Our arms are composed of a number of different types of muscles. Among these muscle types, it is the triceps that are always used with arm movements. As the name implies, triceps are comprised with three main muscles. Strong and big triceps gives an individual the ability to lift heavy loads. Also, having well-developed triceps is a known characteristic of great and powerful arms. That is why so many people are seen doing military presses, bench presses and any other triceps exercises to develop lean and strong triceps.