Decline or Braced Dumbbell Row

Set an incline bench to a 45-degree angle. Grab a pair of dumbbells and lie on your chest on the bench, holding the weights straight down from your shoulders with your palms turned toward your feet.
 
Lift the weights up and out to your sides so your elbows are bent about 90 degrees and your upper arms are nearly perpendicular to your torso.
 
Slowly lower the weights and repeat.