I used this move in my prep to keep my arms bangin.
One thing I do not allow in my studio is for my clients to have jiggly arms.
If your arm is jiggly, you look old. I said it. It doesn’t matter how old you are, so the trick is to keep it tight.
Use a plate at your gym. Keep your elbows tight to your ears and rep that hard. Do 3-4 sets of 12. I do not want to hear about you, bikini girl, lifting 5 pound plates. Go get some big girl plates and get your work done. Even if you start with only a few, drop your weight down and finish the set!