Code point
U+258F
Glyph appearance depends on your fonts.
U+258F
SoU+258F LEFT 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+258F
9615
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E2 96 8F
258F
0000258F
%E2%96%8F
\u258F
\u258F
\u258F
\258F