Lie down on a decline bench with your feet secured and your head lower than your hips. Hold a dumbbell in each hand and extend your arms straight up above your chest, palms facing forward. Lower the dumbbells slowly to the sides of your chest, keeping your elbows at a 90-degree angle. Push the dumbbells back up to the starting position, fully extending your arms. Repeat for the desired number of repetitions.
GIF