Code point
U+2989
Glyph appearance depends on your fonts.
U+2989
PsU+2989 Z NOTATION LEFT BINDING BRACKET is a Unicode 16.0.0 character in the Open Punctuation category. It belongs to the Miscellaneous Mathematical Symbols-B block.
Choose the representation you need, then copy its value.
U+2989
10633
⦉
⦉
E2 A6 89
2989
00002989
%E2%A6%89
\u2989
\u2989
\u2989
\2989