Can't find Assets/Cardboard

Hi, i’m a total newby to Unity. Having trouble with Cardboard assets.
Have a new install of unity 5.5.1f1
installed GoogleVR which i see in assets but i can’t find any cardboard assets.
Are the a separate thing?

OK am i correct in thinking Google VR has replaced Cardboard and we now attach a script to the original camera to get the 3D view? This appears to work although I’m now getting distorted hertical bands all over the view.