ParaForce Knife

The ParaForce Knife is a lock back mechanism is what you see on many classic American folding knives. It's essentially made of a “spine” on a spring. When the knife is opened, the spine locks into a notch on the back of the blade. ... This disengages the lock, allowing you to swing the blade to a closed position. EXTREMELY sharp and dangerous. 
WEIGHT .113 lb
LENGTH 3" BLADE
4" FOLDING KNIFE HANDLE
POCKET CLIP
SAFETY LOCK FEATURE
MADE IN USA