Learn how to perform an arm lock technique with clinching legend Petchboonchu. In this video Petchboonchu demonstrates how to perform an off balancing technique that can put you in a good position to knee. This is an advanced technique that requires good timing and footwork to execute. If you are a beginner in the clinch you should focus on your basics before trying to learn this technique. Special thanks to Petchboonchu for demonstrating this technique. If you want to learn from Petchboonchu you can visit him over at http://evolve-vacation.com