The Spyderco Tusk is a highly advanced Mariner's Tool that is 25 years in the making. Constructed from highly rust resistant materials such as Titanium and superior corrosion resistant LC 200 N high nitrogen alloyed tool steel. Modern features such as a Reeve Integral frame lock for the folding blade with high strength ceramic Ball Bearing Lock for the marlinspike. 300-series stainless steel spike has round-to-square cross section to loosen knots effectively. Includes two shackle keys and reversible tip-down carry clip. Direct from Spyderco knives.