The Flash II features SOGs patented S.A.T., SOG Assisted Technology. This mechanism helps propel the blade open once the operator has initiated the one-handed opening action. They are as fast as lightning, safe, and provide an extremely strong blade lock. This opening action is uniquely different from all others with its fast start and power curve throughout the movement of the blade. The Flash II Black TiNi comes standard with a glass-reinforced nylon handle and black TiNi 1/2 serrated blade/clip/pivot. All Flash knives come standard with SOG's patent pending, reversible bayonet mounted clip that ensures the lowest, most discreet carry possible. Also included is a small safety that helps insure the knife won't open until you're ready.