Spyderco Domino. 4 1/2" closed linerlock. 3" flat ground premium CTS XHP steel blade with thumb hole pull and flipper. Solid titanium liners and back handle. Front handle has black cubic check carbon fiber laminate onlay. Features R.I.L. (Reeve Integral Lock) mechanism with a steel interface that serves double duty as an overtravel stop. Four position black finish stainless pocket clip. Eric Glesser design.