The blade on the Jammer Black Ops series is nice quality black finished 1045 stainless steel (tanto style, plain). This is a spring assisted knife, meaning when you push on the thumb stud to open it a spring takes over and propels the blade open (you can also activate the knife by pressing a flipper on the spine when the blade is closed). The body of the Jammer is made out of green aluminum and features steel liners. A black pocket clip (tip down) ensures easy carry and access. The overall fit of the knife body is quite good as are the the action and lock-up.