Code point
U+2581
Glyph appearance depends on your fonts.
U+2581
SoU+2581 LOWER ONE EIGHTH BLOCK is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Block Elements block.
Choose the representation you need, then copy its value.
U+2581
9601
▁
▁
E2 96 81
2581
00002581
%E2%96%81
\u2581
\u2581
\u2581
\2581