Perfect blocking techniques are demonstrated by Grand Master John Chung on this great instructional DVD. He shows you how to defend yourself, after all Taekwondo is a martial art you can use anytime or anywhere. Grand Master Chung will teach you single blocks, double blocks, as well as unique blocks, which can be used simultaneously as a strike. Grand Master Chung’s impact on martial arts history is unquestionable, and the three time Diamond Nationals forms champion will always be known as one of the greatest competitors of all time.