How to: GAIN INCHES on your BICEPS with 21's!

One of the best exercises when it comes getting bigger and stronger arms is 21's.

We recommend adding 21's as second or third exercise in your ARMS workout routine.

Focus on quality reps and aim for 4 to 6 sets with moderate weight.

If you are a beginner, make sure to use EZ Curl barbell.

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How to: GAIN INCHES on your BICEPS with 21's!