The dumbbell shoulder press is an effective exercise for building strength and stability throughout the shoulder complex, while also targeting the triceps and upper back.
Grab a set of dumbbells, and hold them at shoulder-height with both arms bent and palms facing away from each other.
Stand tall with your feet placed shoulder-width apart. Gripping the dumbbells as tight as possible, press them overhead until your elbows are completely locked out. Pause, and then slowly lower the weight back to the starting position.
To avoid hyperextending the lower back, keep your chin parallel to ground and a slight bend in your knees.