LEFTWARDS PAIRED ARROWS U+21C7

BlockArrows
CategoryOther Symbol
UTF-80xE2 0x87 0x87
UTF-160xFF 0xFE 0xC7 0x21
UTF-320xFF 0xFE 0x0 0x0 0xC7 0x21 0x0 0x0
HTML⇇
Pythonu"\u21C7"