Code point
U+3339
Glyph appearance depends on your fonts.
U+3339
So<square> 30D8 30EB 30C4U+3339 SQUARE HERUTU 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+3339
13113
㌹
㌹
E3 8C B9
3339
00003339
%E3%8C%B9
\u3339
\u3339
\u3339
\3339