A nice SPRING assist knife. This may be the way of the future for switchblades. These new models open as easy if not easier than a fully automatic knife. A great compact size knife. I think you'll be happy with it. Just honest good quality. The 440 non serrated black blade on this model = 3-1/8". Opens very quick & smooth. Flick it open with your index finger or thumb. Pocket clip is installed.