Collection gravels 01 (Seamless) :

Created entirely in Substance 3D Designer.

I used VrayDisplacmentMod and displac modifier.
I added displacment ground Map.

3 variants of color Gravels / HighDetails / 4K PNG PBR / Seamless

Base color “PNG 8 bit”
Normal Map “PNG 8 bit”
Roughness “PNG 8 bit”
Ambient occlusion “PNG 8 bit”
Displacement “PNG 16 bit”

In the archive:
* .max
* .fbx
* .obj
* .mtl