Spyderco Stretch British RACING Green FRN Plainedge ZDP-189 Japanese ZDP-189 steel is manufactured by Hitachi using powdered metal technology. 3% of its component composition is pure carbon making the blade harder and one of the most edge retentive alloys in the knife industry. Turned-out with a mid-spine positioned back lock the British Racing Green FRN handle is injection molded and surfaced with Bi-Directional Texturing Skeletonized and nested steel liners Screw together construction makes cleaning and adjustments simple The steel pocket clip screws into pre-drilled holes on both sides and both ends of the knife making four possible carry options: left/right-handed and tip-up or tip-down 4-way clip. Screw-together construction. Nested steel liners. Phosphor bronze washers. David Boye Dent. Enlarged opening hole. Spine and choil jimping. Bi-directional textured FRN handle. Full-flat ground blade.