Remove space from new command

Question

There seems to be extra space in my command but I can not find and delete it. Where does this space come from?

I need to use my arrow inside a box.

MWE:

\documentclass{article}
\usepackage{graphicx}
\usepackage{tikz}
\usetikzlibrary{arrows.meta}
\newsavebox{\arbox}
\newcommand{\myarrow}[1][]{\sbox{\arbox}{\scalebox{#11}[1]{%
            \tikz[line cap=round,scale=1,semithick]\draw[->,>={Stealth[round]}]%
            (0,0) .. controls (0.3,0) and (0.2,0.3) .. (-0.1,0.5);%
    }}%
    \usebox{\arbox}%
}
\newcommand{\test}[1][]{\sbox{\arbox}{\scalebox{#11}[1]{%
            Text%
    }}%
    \usebox{\arbox}%
}
\begin{document}
\fboxsep0pt
\fbox\myarrow

\fbox\test


\end{document}