Very satisfied with this Spetsnaz DVD. More than 50 different applications of knife fighting techniques. Easy to follow instructions. I found that all applications are practical and real. Some exercises are very simple and some are advanced. Definitely recommend this Spetsnaz DVD to both: beginners and advanced students. This is quite different from other Martial Arts and I like the simplicity and effectiveness of Spetsnaz knife combat. I am adding this DVD to my list of my favorites.