Top 9 Dumbbell Arm Workout Our top nine dumbbell arm exercises work each head of the arm musculature using various dumbbell movements. When put together, they offer a well-defined dumbbell arm workout. They can be performed at home or in the gym. Bicep: Dumbbell Curls. Dumbbell Zottaman Curl. Dumbbell Hammer Curl. Tricep: Dumbbell Skullcrusher. Dumbbell Kickback. Dumbbell single arm extension. Forearm: Dumbbell Zottaman forearm Curl #workout #armworkout #dumbbellarmworkout #bodybuilding