The Smith & Wesson S.W.A.T. automatic knife boasts excellence in craftsmanship. This is your industrial strength switchblade knife ready for daily use. The blade is factory sharpened and is capable of shaving hair off your arm. This automatic knife has a violently strong spring that locks the blade tight and fast upon every press of the hidden release button. The S&W S.W.A.T. can also be opened by using the thumb stud, making it dual- action!