Iron Strong's Arm Circuit 2 is a compliment to Iron Strong's Favorite Arm Circuit.
This 1 minute video demonstrates the form for the 4 exercises in the circuit. The circuit comprises 4 exercises, 10 reps each, 4 rounds. This will work if you continue to pick a challenging weight. Challenging = whatever dumbbells you wanted to pick up, go up one heavier from that.
4 rounds of the following:
Overhead Dumbbell Press: 10
Dumbbell Bench Press: 10
Hammer Curls: 10
Front and Lateral Raise: 10 each. This exercises uses a lighter weight than the others