U+2B65 "⭥" Up down Triangle-Headed Arrow Unicode Character

U+2B65 "⭥" Up down Triangle-Headed Arrow is a bidirectional arrow symbol featuring two opposed triangular arrowheads, one pointing upward and the other downward, connected by a vertical shaft. It is part of the Miscellaneous Symbols and Arrows block and is typically used to indicate movement in two opposite vertical directions, toggling between states, or representing a reversible process. Unlike simpler up down arrows, its triangular heads give it a more distinct, bold appearance, often employed in user interfaces or diagrams to denote expand and collapse functionality or bidirectional vertical flow.