Here's a couple of photos of my 21 inch arms. The biggest they have measured in the past was 22 inches, but those photos got lost 11 years ago when my wife and I moved to SC.
They key to building 21 inch arms is using "Slingshot Functional Training", the "Functional Diet", and "Functional Hormone Replacement".
Here's a link that gives a good description about Slingshot Functional Training- http://forums.steroid.com/anabolic-s...want-read.html
In addition, here’s a link to Amazon to buy my book, "Functional Training with a Fork". It gets into all 7 types of Functional Training, (including Slingshot Functional Training), the Functional Diet, Functional Hormone Replacement, etc. - http://www.amazon.com/Functional-Tra...ng+with+a+fork