$\begin{tikzpicture}[baseline]
    \node (0,0) (JW) [rectangle,draw] {$\JW{4n-3}$};

    \draw (JW.35) -- +(90:5mm);
    \draw (JW.90) node [above] {$\cdots$};
    \draw (JW.145) -- +(90:5mm);

    \draw (JW.-35) -- +(-90:5mm);
    \draw (JW.-90) node [below] {$\cdots$};
    \draw (JW.-145) -- +(-90:5mm);
\end{tikzpicture}
=0$