The Long Left Right Double Arrow symbol (⟺). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Arrows.
The quickest way is to copy ⟺ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
⟺ is U+27FA (decimal 10234).
Use ⟺ in HTML to render ⟺ on a web page.
On Windows you can type it with Alt+10234 (hold Alt and enter the number on the numeric keypad).
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