Code point
U+3345
Glyph appearance depends on your fonts.
U+3345
So<square> 30DE 30C3 30CFU+3345 SQUARE MAHHA 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+3345
13125
㍅
㍅
E3 8D 85
3345
00003345
%E3%8D%85
\u3345
\u3345
\u3345
\3345