Stand with a dumbbell in each hand at the shoulders with the palms facing approximately forward. Press into a fully locked out, stable overhead position with the upper back tight, then lower under control to the starting position.
 
Purpose
The dumbbell press is a simple way to strengthen the shoulders, upper back and arms and help achieve or maintain symmetry in strength between the two sides.
 
Programming
Generally sets of 6-15 reps are appropriate.