This knife is virtually flawless. M390 Super Steel. Scary sharp, I promise it won't disappoint. This knife sells as used, but you would barely know it. It is an auto assist. The knife jumps open very briskly when pressure is applied. This is a GREAT knife, I'm just thinning the herd. Gotta sell the good, pretty ones that will move. Why pay $200.00, this knife is great!!