With the purchase, you will receive Blender files shown above. In the "shader editor" section you will find all the combined nodes that generate the image.  Since the material is procedural, endless variations can be generated and it can also be animated. 

By selling the file and not the course, you have direct access to the resource and you can start creating your own backgrounds and animated wallpapers right away.

The material is 100% procedural and very intuitive to use so that even beginners can create backgrounds without limitations due to in-depth knowledge of Blender.