Thanks for the comments.
They look pretty cool in the hand, never going to let this one go!
There have been a few threads on the forums over the years on how rare these cards are, think the 94-95 Rack Pack Test Refractors are probably the rarest of this type of 90's card.
Only seen 2 Hills a Glenn Robinson PSA 8 and there's a Jason Kidd PSA 9 on EBay at the moment.
The test refractor from these 94-95 Rack Packs were never released in packs. No one really knows I think how they got out but a few have said that employees might of run a few of these as a experiment.
Have only seen 2 of the Hills, 1 Kidd, 1 Robinson, so they are extremely rare, probably numbered less than 5.