Which one of these knives are better for self defence use?

Knife is not a powerful weapon against self defense because if handled wrongly it would harm you and would cause very worst damages too. A safer and powerful weapon for self defense is martial arts. It would make you powerful mentally and physically. For more information regarding the uses of martial arts visit a href="http://www.stocktonkarate.com/" rel="nofollow"http://www.stocktonkarate.com//a