This exercise makes for beautifully shaped shoulders. Try to do it at least twice a week.
Sit on the edge of a chair or stand with your knees slightly bent. Engage your abs and hold medium weights (2– 5 pounds) just over your shoulders, keeping your elbows bent at right angles as if you were a goal post. Press your weights overhead.
Make sure you don’t arch your back. Lower the weights back down until they are at ear level again.