Cables
 

The beauty of cable crossovers is the different variations you can use to hammer the chest muscles from a variety of angles. Place the cables in upright position to focus on upper chest development or place them near the ground for lower chest development. The difference between a crossover and a standard fly is the end of the movement. For the cable crossover, bring the arms towards each other forming an “X” shape at the end of each rep to stimulate the inner pectoral portion of the chest.