Target Muscles: Pectoralis major (lower chest), Anterior deltoids, Pectoralis minorStarting Position:1. Lie on your back on a decline bench with your legs in the pads.2. Hold a dumbbell in each hand and hold them above your chest with your arms extended and palms facing each other. Bend your arms very slightly.The Movement:1. Slowly lower the dumbbell out to your sides in a semi-circular arc. Keep your elbows locked in the slightly bent position throughout the range of motion.2. When your upper arms reach shoulder level and you feel a strong stretch in your shoulders, return the dumbbells to the starting position, following the same arc. Do not pause at the bottom of the movement.Tips:• Maintain the slight bend in your elbows. Don't allow them to bend to 90° otherwise this turns the movement into a dumbbell press.• Do not allow your upper arms to go much below shoulder level as this could place excessive stress on the shoulder joints and risk muscle or tendon tears.Variations:Incline fly: Performing flys on an incline bench set at 30-45° increases the stress placed on the upper chest and anterior deltoids. It is therefore particularly good for developing mass and thickness in the upper chest.