From The Manufacturer:
"ModularArts® InterlockingRock® is a collection of innovative products that work in multiples to create seamless, and graceful architectural features. All edges and joints interlock for quick, accurate alignment, and superior joint stability. Cast with non-combustible mineral, you can breathe easy! —our products are durable, safe and healthy. Repeating modules (PANELS, TILES, and BLOCKS) accommodate areas of any size and can be easily trimmed on-site. Low VOC installation kits ensure the use of responsible, tested materials. Components are designed for less crating waste, superior fire safety, indoor air quality, and ease of handling and installation. modularArts® is dedicated to the manufacture of smart products. We eagerly apply the newest technologies in our design processes, and throughout our super-efficient U.S. manufacturing facility. We design, engineer, and manufacture technically advanced products with an ancient, tried and true building material —durable, fire-safe rock..."