V-Ray Shaderball (the one, used in the docs)

Is there a way to get my hands on the shaderball that’s used by chaosgroup in their docs like f.ex here: Chaos Docs
I want to built up my shader library and want to have that shaderball for the thumbnails

Not 100% positive but I have got the same shader ball when downloading VRScanned sample scene in the past.

While it’s a nice shaderball and all I think the one @grantwarwick created for his Vray Lessons is a bit better in terms of overall use, especially when using shaders with refractive components.