9" BLACK HEAVY DUTY TANTO BLADE Micro Chip Schematic Pocket Knife Weighs 10 Ounces! 9" Heavy Duty Tanto Blade Pocket Knife, 10 ounce Weight! All Steel Construction With Liner Lock and Belt Clip On Back Side 9" inches overall length, surgical steel blade measuring 4" inches! Unique Micro Chip / Electrical Schematic Design On Blade & Handle Glass Breaker on Handle & Thumbstud on the Blade for Easy Opening!