Code point
U+23AA
Glyph appearance depends on your fonts.
U+23AA
SmU+23AA CURLY BRACKET EXTENSION is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Technical block.
Choose the representation you need, then copy its value.
U+23AA
9130
⎪
⎪
E2 8E AA
23AA
000023AA
%E2%8E%AA
\u23AA
\u23AA
\u23AA
\23AA