Code point
U+254B
Glyph appearance depends on your fonts.
U+254B
SoU+254B BOX DRAWINGS HEAVY VERTICAL AND HORIZONTAL is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Box Drawing block.
Choose the representation you need, then copy its value.
U+254B
9547
╋
╋
E2 95 8B
254B
0000254B
%E2%95%8B
\u254B
\u254B
\u254B
\254B