Code point
U+2900
Glyph appearance depends on your fonts.
U+2900
SmU+2900 RIGHTWARDS TWO-HEADED ARROW WITH VERTICAL STROKE is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Supplemental Arrows-B block.
Choose the representation you need, then copy its value.
U+2900
10496
⤀
⤀
E2 A4 80
2900
00002900
%E2%A4%80
\u2900
\u2900
\u2900
\2900