Most people won’t finish this one..will you? This is the IRON ARM COUNTDOWN 💪🏾 1 dumbbell is all you need to light up your biceps, triceps, and shoulders. The Challenge: 1️⃣2️⃣ Curls 1️⃣1️⃣ Single-Arm Overhead Triceps Extensions 1️⃣0️⃣ Single-Arm Shoulder Presses 9️⃣ Hammer Curls 8️⃣ Kickbacks 7️⃣ Lateral Raises 6️⃣ Curls 5️⃣ Single-Arm Overhead Triceps Extensions 4️⃣ Single-Arm Shoulder Presses 3️⃣ Hammer Curls 2️⃣ Kickbacks 1️⃣ Lateral Raise ➡️ Then switch arms and repeat from 12 → 1. Goal: