Also known as a butterfly knife, fan knife, or Batangas knife (for its place of origin in the Philippines). A folding pocket knife with two handles counter-rotating around the tang such that, when closed, the blade is concealed within grooves in the handles. Notable users include the Spy and Octane.
The following tags are aliased to this tag: butterfly_knife and fan_knife (learn more).
This tag implicates knife (learn more).