6 Moves to Work Your Arms to Exhaustion | Muscle & Fitness
I train at Metroflex Gym, home to Ronnie Coleman. It's safe to say King Coleman's arm development speaks for itself. One of the main stays in Ronnie's triceps routine was the skull-crusher ; interestingly, many bodybuilders at the gym used more weight than Ronnie on this exercise even though they were less-developed and much weaker.