While some people seem to manage to build big arms just by doing the most basic routines, there are those whose biceps remain mediocre with hard and intensive training. (fitnessandpower.com)
If building big arms is what you're after, then you can dedicate 10 % of your workout on isolation movements. (fitnessandpower.com)
On Trial: Incline Dumbbell vs. Preacher Curls Hardcore Chest Workout to Get Massive Aesthetic Pecs Mass Building Moves for a Lagging Chest Arms Done Right: A Guide To Proper Arm Training How to Build Bigger Arms With Hammer Curls 6 Moves to Work Your Arms to Exhaustion Add One Inch to Your Arms in One Month Blow Up Your Chest With the Landmine Chest Press (fitnessandpower.com)