This texture is FREE for commercial use.
They are concrete tiles which can be used for floors and walls. It has the most simplest form of the concrete pattern, which makes its plain and full of industrial style.
The SBSAR files allows users to change the tile color, grout color, grout width, edge wear level, bump level etc.
Check out this free PBR texture at
https://www.texturecan.com/details/348/