Code point
U+239F
Glyph appearance depends on your fonts.
U+239F
SmU+239F RIGHT PARENTHESIS 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+239F
9119
⎟
⎟
E2 8E 9F
239F
0000239F
%E2%8E%9F
\u239F
\u239F
\u239F
\239F