Having just taken up mixed martial arts for mainly health issues, this DVD does give a good application to make your foes life hell with the pressure points in the arm. Having used them on my own brother, who learned Karate but didn`t know about 3/4 of the techniques. They do hurt for anyone who might think of using them a test subject, my arms are covered in brusies. Once you get the hang of it, it almost becomes 2nd nature. Only downside is that it doesn`t cover anything above the triceps/biceps into the shoulder region, other than that it`s a 5+++