LEFTWARDS ARROW OVER RIGHTWARDS ARROW
U+21C6
⇆
Block
Arrows
Category
Other Symbol
UTF-8
0xE2 0x87 0x86
UTF-16
0xFF 0xFE 0xC6 0x21
UTF-32
0xFF 0xFE 0x0 0x0 0xC6 0x21 0x0 0x0
HTML
⇆
Python
u"\u21C6"