U+2B0D "⬍" Up down Black Arrow Unicode Character

U+2B0D "⬍" Up down Black Arrow is a typographic symbol that represents bidirectional vertical movement, indicating an upward and downward direction within a single glyph. It features a solid black arrowhead pointing upward and another pointing downward, aligned along a central vertical shaft. This character is commonly used in user interface design, diagrams, and documentation to denote functions like sorting, scrolling, or expanding and collapsing content in both directions. It is part of the Miscellaneous Symbols and Arrows block, and its visual simplicity allows it to communicate dual directional possibility without relying on text.