Instructions:

1. Sit on an incline bench with a dumbbell in each hand, palms facing inwards.
2. Extend your arms fully overhead, keeping your elbows close to your head.
3. Lower the dumbbells behind your head by bending your elbows, keeping your upper arms stationary.
4. Pause for a moment, then raise the dumbbells back to the starting position by extending your arms.
5. Repeat for the desired number of repetitions.