Made in the USA right here in Kenmore! They come in 3″ increments, so its not a headache to install. Most of them are 3/4″, which is 2cm thickness. We do have a variety that come in 1-1/4″/3cm thickness as well. They come in a color mixture and an all white set. Inquire direct for pricing and availability. It can be used as flooring, backsplash, fireplace, patio etc.