Code point
U+29C8
Glyph appearance depends on your fonts.
U+29C8
SmU+29C8 SQUARED SQUARE 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+29C8
10696
⧈
⧈
E2 A7 88
29C8
000029C8
%E2%A7%88
\u29C8
\u29C8
\u29C8
\29C8