%&tex
\documentclass{standalone}
\usepackage{tikz}
\usepackage{siltex}
\usetikzlibrary {arrows.meta,positioning}
\input{graphics/tics.tikz}

\begin{document}
\begin{tikzpicture}[thick, on grid, x = 2.16cm, y = 2.16cm, >=Stealth]
    \draw(0,-0.1) pic {rail};
    \draw(0,2.6) pic {rail};
    \draw(0,0) pic {whiteboard};
    \begin{scope}[shift={(1,0)}]
        \draw[fill=gray!60] (-0.05,-0.1) rectangle (0.05,2.6);
        \draw[<->] (-0.3,-0.2) -- node[midway,below]{$x$} (0.3,-0.2);
        \begin{scope}[shift={(0,1.7)}]
            \draw[fill=gray!80] (-0.12,-0.15) rectangle (0.12,0.15);
            \draw[<->] (0.25,-0.25) -- node[midway,right]{$y$} (0.25,0.25);
        \end{scope}
    \end{scope}
\end{tikzpicture}
\end{document}