Designed for those who can't decide if they should carry an OTF knife or brass knuckles. Our OTF Knuckle Knife gives you both! The double action OTF knife features a 3.5" 440C stainless steel, dagger point blade. The black handle is constructed from extremely durable zinc alloy and is inlayed with carbon fiber in the center of the handle. Metal belt clip, glass breaker, and molle nylon sheath with velcro belt loop are included. Measures 6" closed (including glass breaker) and 9.5" overall.