About RIGHTWARDS TWO-HEADED ARROW WITH TAIL WITH DOUBLE VERTICAL STROKE
Rightwards Two-headed Arrow With Tail With Double Vertical Stroke (U+0B66) is a Unicode math symbol from the Supplemental Arrows-B block. It resides on Plane 0 (BMP, Basic Multilingual Plane), has bidirectional class ON (other neutrals), is not mirrored, and has combining class 0 (Not Reordered). In HTML it can be written as ⤘ or ⤘.