Code point
U+29E0
Glyph appearance depends on your fonts.
U+29E0
SmU+29E0 SQUARE WITH CONTOURED OUTLINE is a Unicode 16.0.0 character in the Math Symbol category. It belongs to the Miscellaneous Mathematical Symbols-B block.
Choose the representation you need, then copy its value.
U+29E0
10720
⧠
⧠
E2 A7 A0
29E0
000029E0
%E2%A7%A0
\u29E0
\u29E0
\u29E0
\29E0