⇍
LEFTWARDS DOUBLE ARROW WITH STROKE
U+21CD
⇎
LEFT RIGHT DOUBLE ARROW WITH STROKE
U+21CE
⇏
RIGHTWARDS DOUBLE ARROW WITH STROKE
U+21CF
⇐
LEFTWARDS DOUBLE ARROW
U+21D0
⇑
UPWARDS DOUBLE ARROW
U+21D1
⇒
RIGHTWARDS DOUBLE ARROW
U+21D2
⇓
DOWNWARDS DOUBLE ARROW
U+21D3
⇔
LEFT RIGHT DOUBLE ARROW
U+21D4
⇕
UP DOWN DOUBLE ARROW
U+21D5
⇖
NORTH WEST DOUBLE ARROW
U+21D6
⇗
NORTH EAST DOUBLE ARROW
U+21D7
⇘
SOUTH EAST DOUBLE ARROW
U+21D8
⇙
SOUTH WEST DOUBLE ARROW
U+21D9