| Name | LEFT SQUARE BRACKET WITH UNDERBAR |
| Unicode Version | 3.2 |
| Block（ブロック） | Miscellaneous Mathematical Symbols-B（その他の数学記号B） |
| Plane（面） | Basic Multilingual Plane（基本多言語面） |
| Script | |
| Category | |
| Bidirectional Class | |
| Combining Class | |
| Character is Mirrored | |
| HTML Entity | ⦋ ⦋ |
| UTF-8 Encoding | ⦋ e2a68b |
| UTF-16 Encoding | ⦋ 298b |
| UTF-32 Encoding | ⦋ 0000298b |