This Tac-Force Karambit is spring assisted, just give the blade flipper a push and the knife will open the rest of the way automatically. The black finished 440 stainless steel blade opens smoothly and locks up tight due to its liner lock construction. This Karambit features green aluminum scales with red eyed skulls. The handle has circular cutouts and an arced modeled piece for grip at your palm. The knife has a steel pocket clip (tip-down) and a features torx screw construction.