The (BSW). The way of the switchblade may be a thing of the past if they keep coming up with these gems. Just a flick with your index finger is all it takes to get this baby flying open. Razor sharp hair shaving blade measures 3". Real wood scale over an aluminum sub scale on top of a black frame. Liner release to close the blade form the open position. Well secured pocket clip. Lanyard hole. Double sided thumb stud. You can open this with either the thumb stud or the the tip that sticks out through the top.