Technical information

Symbol
NameRightwards harpoon over leftwards harpoon
Unicode numberU+21CC
CategoryHarpoon arrows
DescriptionThe Unicode character ⇌, or U+21CC, is known as the "Rightwards Harpoon Over Leftwards Harpoon". It belongs to the "Arrows" block and falls under the "Symbol, Math" category in the Unicode standard. This character is a graphic representation of a rightwards and a leftwards harpoon with their heads facing opposite directions, overlayed on top of each other. This symbol is often used in chemistry to indicate a reversible reaction, and in mathematics to denote a relation where each element of the first set is related to an element of the second set and vice versa. The specific appearance and usage of this character can depend on the system and application it's being used in.

Encoding

HTML Entity⇌
HTML Entity (hex)⇌
HTML Entity (named)
URL Escape Code%E2%87%8C
UTF-8 (hex)0xE2 0x87 0x8C
UTF-8 (binary)11100010:10000111:10001100
UTF-160x21CC
UTF-320x000021CC

Source Code

C, C++, and Java"\u21CC"
CSS Code\21CC
JavaScript"\u21CC"
Perl\x{21CC}
Python 2u"\u21CC"
Python 3\u21CC
Ruby\u{21CC}

Preview

This Unicode character looks like this ⇌ in sentence and in bold like this and in italic like this .

Font size:

12px
16px
20px
28px
36px
48px
72px

CSS Property: font-weight

100
200
300
400
500
600
700
800
900

HTML Forms and Input

input
disabled input
input-group
select
button
button

Code examples in HTML and CSS

<span>&#8652;</span>

            
span {
    content: "\21CC";
}

The symbol in different fonts

-apple-system
Apple Color Emoji
Arial
BlinkMacSystemFont
Courier New
Georgia
Droid Sans
Helvetica
Noto Sans
Oxygen
Roboto
"Segoe UI"
sans-serif
Segoe UI Emoji
Segoe UI Symbol
system-ui
Times New Roman
Ubuntu
Verdana

References