Sinking Nights Heavy Duty Balisong Flipper Butterfly Knife. The blade is composed of 440 stainless steel in a drop point style. The handle is constructed of thick steel pieces riveted together using sturdy pins. A metal safety latch is included to lock the blade into place when it is not in use as well as when it is deployed. The contrast of black and silver created from the faux-raindrop Damascus finish throughout the entirety of the knife creates a trippy appearance that demands to be seen. Overall Length: 9.25 Inches, Blade Length: 3.75 Inches