Somewhat rusty rebar bent 180 degrees at construction site in Rixö old quarry, Lysekil, Sweden. Photo taken on <a href="//commons.wikimedia.org/wiki/File:Rebar_at_contruction_site.jpg" title="File:Rebar at contruction site.jpg">this site</a>.
<a href="//commons.wikimedia.org/wiki/User:W.carter" title="User:W.carter">W.carter</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>