Kuk Sul Hapkido Martial Arts Black Belt Training Dvds(5). These DVDs are intended for Beginners and Advanced students of Martial Arts Self Defense Wrestling Judo Karate and for all athletes Learn at your own pace. No need to leave your home to go to a school. Have a Master Instructor as close as your television. In today's society, great health, knowledge of self-defense techniques, and self confidence are beneficial and necessary to maintain a happy, balanced life.