The Braille Pattern Dots-123567 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+2877 (decimal 10359).
Use ⡷ in HTML to render ⡷ on a web page.
On Windows you can type it with Alt+10359 (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.