4-minute awesome arms and abs

Quick 4-minute abs and arms workout today. Did this one for Men's Health. I send them new workouts each week in hopes that something will catch their eye for the magazine. It went down like this:- Spend 1 minute on each move...use dropsets with DB exercises...modify body position if you fail with bodyweight moves (i.e. go to regular plank from ball plank):1) Stability Ball Plank2) DB Triceps