This tutorial show how to flip your sai from the defensive grip to the attacking grip. It looks really cool, and it let you mix your sai tricks in a freestyle routine.
In this video, I show how to grip and hold your sai.
In order to have a strong grip, you have to be able to hold the two sai with the technique I showed in the video, and if you can it means that your are holding the sai strong enough.
This video is a tutorial on how to do a palm spin with your sai (the sai is a martial art weapon).
This trick is freestyle… this means it is not a canonical move, but it looks pretty cool.