U+219E "↞" Leftwards Two Headed Arrow Unicode Character

U+219E "↞" Leftwards Two Headed Arrow is a typographic symbol that represents a leftward pointing arrow with two distinct arrowheads on its shaft, typically used to indicate a bidirectional relationship or a two way connection oriented to the left in diagrams, mathematical notation, or user interface contexts. Unlike a standard single headed arrow, the two headed design visually conveys that movement, mapping, or logical flow can occur in either leftward direction or that an element points both ways along the same axis. This character is part of the Arrows block in Unicode and is commonly employed in technical documentation, flowcharts, and abstract representations of symmetry or equivalence when a simple left arrow would be insufficient.