It is a piece of totally worn out leather.
The superficial is completely ripped off, so the underneath vein or root like texture is exposed. The inner texture is like a network spreading across the whole surface.
This is a seamless and tileable PBR CG texture for 3D artists.
Each package usually includes a Base Color Map / Diffuse Map, Normal Map, Roughness Map, Displacement Map, Metallic Map (Metals Only) and Ambient Occlusion Map.
Note:
2K and 4K files should suit most of your need. 8K is a large file which will slow down 3D rendering.
SBSAR file is only supported by some game engines and 3D rendering software such as Unity, Unreal, Maya etc.
It is FREE for personal and commercial use!