<https://www.chaosorc.com/shop/paints-dice-supplies/basing-material/course-ballast-buff3x5-bag/#product>
<http://schema.org/description>
"In the real world, ballast holds railroad ties in place. Modelling Ballast is great for modeling gravel roads and any other use you would see small gravel or rocks in."
<https://www.chaosorc.com/shop/paints-dice-supplies/basing-material/course-ballast-buff3x5-bag/>