ebay Vita 3D shade guides?

[Ryan Gottlieb]

So there are lots of brand new Vita 3d shade guides on Ebay for a fraction of the normal price. have any of you tried these? I'm sure they are knock-offs(even though claim to be from Vita) but are the shades the same?
Thanks

 

[Campbellslab]

We got a few and threw them in the trash. None of the shades matched. This was about 2 years ago so they may have changed since then

 

[RileyS]

the knock off's are crap. But I've searched through them and found some real ones from dental school drop outs.