So it has been hammered into me all my life by the law that "flick knives" are just weapons, dangerous and illegal. I bought the bottom one believing it was a gravity knife, that the blade slides out and requires being pulled on to lock, nope.. it's a flick #knife And it's so safe! When I put the knife down I retract the #blade, no chance of it coming out, nobody can cut themselves on it. I can walk away and it's safe. The legal #60 scalpel on top is far more dangerous, it doesn't lock.