These wrist locks have been copied by many major styles and trained to their students because they are so effective.

I studies Aikido for over 15 years and you can learn more about wrist locks in this Video and Manual set than in 15 years of training with a master. It is truly amazing!

It takes a Grandmaster who has trained thousands to transfer this knowledge so simply, and in a way that is easy to understand no matter what your Martial Arts experience level is.