Standing cable crossover flyes

Instructions

Stand between two high pulleys with handles. Grab the two pulleys behind you and bring your arms, almost streched, to your sides. You are standing up, straight back, knees slightly bent, one leg in front of the other and bust slightly leaning forward. This is the starting position.
Keeping your arms almost stretched, bring your hands together in front of you. Only the arms should move.
Hold this position for one second then slowly return to the starting position.

Muscles