Code point
U+3396
Glyph appearance depends on your fonts.
U+3396
So<square> 006D 2113U+3396 SQUARE ML 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+3396
13206
㎖
㎖
E3 8E 96
3396
00003396
%E3%8E%96
\u3396
\u3396
\u3396
\3396