Check out this state of the art, instructional DVD series where Senior Master Mark Gridley presents and clearly explains the use of pressure points in self defense.  The Combat Hapkido Tactical Pressure Points course is the result of many years of study and research with the guidance and assistance of the world's leading pressure points experts.  It is based on sound, practical and modern self defense principles without the excessive complexity or the mystical hype of other pressure points systems.  The Combat Hapkido Tactical Pressure Points course is widely used in various disciplines around the world and can be easily added to any martial arts program.