I'm sure if you follow this program and constantly strive to increase your training weights, while eating plenty of good food, you can't help but make gains. I'm not kidding! You can have significantly bigger arms in only 31 days!

How much bigger?

That depends on a lot of factors. You weren't able to select your parents so you're stuck with your genetic potential to build muscles. You may have a good potential or you may be like many of the rest of us who have average (or worse than average) potential.