Code point
U+27F7
Glyph appearance depends on your fonts.
U+27F7
SmU+27F7 LONG LEFT RIGHT ARROW is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Supplemental Arrows-A block.
Choose the representation you need, then copy its value.
U+27F7
10231
⟷
⟷
⟷
E2 9F B7
27F7
000027F7
%E2%9F%B7
\u27F7
\u27F7
\u27F7
\27F7