Lie flat on a bench with your feet flat on the ground and your knees bent. Hold a dumbbell in each hand with an overhand grip, palms facing towards your feet. Extend your arms straight up towards the ceiling, keeping a slight bend in your elbows. Slowly lower the dumbbells towards your chest, allowing your elbows to flare out to the sides. Pause for a moment at the bottom, then push the dumbbells back up to the starting position. Repeat for the desired number of repetitions.
GIF