<https://paragoninstruments.com/surveying-and-construction/mini-prism-high-precise-sokkia-type-1-5-inch-dia/#webpage>
<http://schema.org/description>
"Sokkia Style Mini Prism (1.5 inch dia) has a twist lock and full sliding type that is used for surveying & construction works for better performance"
<https://paragoninstruments.com/surveying-and-construction/mini-prism-high-precise-sokkia-type-1-5-inch-dia/>