<https://www.grafixplastics.com/grafix-plastics/plastic-film-plastic-sheet-faq/mylar_what/mylar_prop/#primaryimage>
<http://schema.org/caption>
"a roll of mylar polyester film"
<https://www.grafixplastics.com/grafix-plastics/plastic-film-plastic-sheet-faq/mylar_what/mylar_prop/>