Free Runner Damascus D/A OTF Automatic Knife Dagger. The Free Runner OTF is an automatic knife with a gorgeous checkered finish on its aluminum handle concealing a spear point, Damascus blade. A glass breaker is positioned at the base of the handle and it, along with the hardware and switch, sport a black finish which compliments the gray checkered finish of the handle itself flawlessly. The 3.7-inch Damascus blade has a fuller running down the middle with 7 holes cut out along it to assist with balance and weight distribution. The Free Runner OTF comes with a complimentary black nylon sheath equipped with a belt loop so it can go with you wherever your feet take you. Overall Length (Open): 9 Inches. Weight: 9.6 oz./0.6 lbs.