Code point
U+33A3
Glyph appearance depends on your fonts.
U+33A3
So<square> 006D 006D 00B3U+33A3 SQUARE MM CUBED is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the CJK Compatibility block.
Choose the representation you need, then copy its value.
U+33A3
13219
㎣
㎣
E3 8E A3
33A3
000033A3
%E3%8E%A3
\u33A3
\u33A3
\u33A3
\33A3