SOG Knives & Tools One-Zero, Folding Knife, 3.1 Clip Point Straight Edge, Aluminum Handle, Cryo CPM S35VN Steel, Titanium Nitride Finish, Black and Chrome SOG-12-73-03-57 Featuring fluid" yet confident lines" One-Zero XR is much more than a handsome face due to its super strong XR Lock providing smooth and reliable blade lock-up" polished TiNi coated CRYO CPM S35VN steel blade" and sculpted aircraft-grade aluminum handle with hidden fasteners.