Zenkutsu Dachi and Kokutsu Dachi basics
This is a tutorial video for the Missing Link Martial Arts Online Resources. It covers the Manchester Syllabus - Basic Stances - Kokutsu Dachi.
Sensei Chris gives ideas how to use Kihon for balance training.
Sandro Sensei shows stance exercises - that you won't need a punching bag for, although it adds extra fun.