This prototype features a two-tone double edged dagger blade with satin flats and mirror grinds, there are two cut aways in the middle of the blade edge, then there are false edges from there on. The handle has satin finished stainless steel bolsters, bone scales with 2 Abalone inlaid push buttons, anodized titanium liners, and a file-worked stainless steel back-spacer. There is a second blade at the butt of the handle. Pushing the bottom push button fires a spike out of the opposite side of the handle. 2 3/8" spike with a notched thumb-rest and a nearly sharpened top edge. Comes with a nylon zippered case. Nice blade seatings and lockups. The blades and bolsters have a few light scratches, otherwise great condition.