This Systema Spetsnaz DVD teaches in details where to strike (primary striking zones), how to strike and generate a powerful strike and what part of body to use for a specific strike (side of the hand, hand knuckles, a finger, an elbow, a heel, a knee etc.) It has basic strikes and advance strikes (double and triple strikes). I've been in Martial Arts for 8 years and this Spetsnaz DVD surprised me. A lot of simple and effective self-defense techniques!