Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not very real

I bought this tape based on the fact the Krav Maga is a very real and powerful self defence martial arts. As I watched this I kept telling myself this has to be a cut down version of the real Krav Maga. Most of the blocks you see has you bent over with your knees straight. In this position you are way off balance or can be taken off balance easly. Plus the punch they show that goes with these blocks can not have any power to do more than [irritate] the attacker ... If you watch the little re-enactments you can see where the defening guy would be lays is a pool of blood if they were using a real knife and not a fake, because you can see where the fake knife bends as it goes it touches his body were a real knife would have cut or stab into the body.