The Kershaw 1555BW Cryo Assisted Opening Knife Black Wash Plain Edge. This Cryo II features a drop point BlackWash finished blade and handle. The Cryo II is a spring assisted flipper knife designed in collaboration with Rick Hinderer. It is a framelock folding knife with a Hinderer lockbar stabilizer that features all stainless steel construction. The blade is made from 8Cr13MoV stainless steel and opens with a push of the flipper or thumb stud.