<https://www.acegatehardware.com/product/rectangular-plastic-post-cap-25mm-x-50mm-pc2550/#product>
<http://schema.org/description>
"Flat Rectangular Post Cap   SUITS: 25mm x 50mm"
<https://www.acegatehardware.com/product/rectangular-plastic-post-cap-25mm-x-50mm-pc2550/>