&darr2;&darr2;⇊&#x21ca;&#8650;'\u21ca'downwards paired arrows
&dlarr;&dlarr;↙&#x2199;&#8601;'\u2199'south west, downward left arrow
&drarr;&drarr;↘&#x2198;&#8600;'\u2198'south east, downward right arrow
&larr2;&larr2;⇇&#x21c7;&#8647;'\u21c7'leftwards paired arrows
&lrarr2;&lrarr2;⇆&#x21c6;&#8646;'\u21c6'left arrow over right arrow
&lrhar2;&lrhar2;⇋&#x21cb;&#8651;'\u21cb'left harpoon over right
&rarr2;&rarr2;⇉&#x21c9;&#8649;'\u21c9'two right arrows
&rlarr2;&rlarr2;⇄&#x21c4;&#8644;'\u21c4'right arrow over left arrow
&rlhar2;&rlhar2;⇌&#x21cc;&#8652;'\u21cc'right harpoon over left
&uarr2;&uarr2;⇈&#x21c8;&#8648;'\u21c8'upwards paired arrows