Specifications: CM Full length: 12.3 Blade length: 5 Blade thickness: 0.2 Blade width: 2.5 Handle material: All steel Blade material: 440 Hardness: 55 Weight: 50g Lock: Mechanical lock Blade: Sharp Surface treatment: Black titanium treatment belt Back clip, original paper box. The knife is very compact and can be buckled on a keychain and carried, which is very convenient. The unique shape and innovative operation method break the traditional concept and give you a completely new look! Opening the knife: The triangular part at the end of the knife handle can be like a movable clip. Use your fingers to clamp it with a little force to open the knife blade. Close the knife: Press the triangular tail of the knife handle to close the knife blade.