| Glyph | Code point | Name | Related |
|---|---|---|---|
| 21C6 | LEFTWARDS ARROW OVER RIGHTWARDS ARROW |
| To use in... | Use this... |
|---|---|
| Email subject or friendly from | =?utf-8?Q?=E2=87=86?= |
| or | =?utf-8?B?4oeG?= |
| In HTML | ⇆ |
| In quoted-printable UTF-8 text | =E2=87=86 |
| In applications | Enter 21C6 as described here (or copy and paste from here) |