This texture is FREE for commercial use.
They are limestone tiles having chipped edges and different shades of beige. There are also pits and bumps on the surface.
The SBSAR file allows users to adjust the tile color, amount and ratio of tiles, tile offset, grout color, grout width, edge wear, dent amount, scratch amount etc.
Check out this free PBR texture at
https://www.texturecan.com/details/350/