The Braille Pattern Dots-2346 symbol (⠮). Copy and paste it, or use its Unicode, HTML, and CSS codes.
More from Braille.
The quickest way is to copy ⠮ from this page and paste it anywhere. You can also insert it with its Unicode, HTML, or alt code listed above.
⠮ is U+282E (decimal 10286).
Use ⠮ in HTML to render ⠮ on a web page.
On Windows you can type it with Alt+10286 (hold Alt and enter the number on the numeric keypad).
Yes — copying is completely free and unlimited, and works right in your browser with no sign-up.