They are 5x114.3 - suit a skyline or anything that skyline rims fit. I've used them on my R32 a few times. I think they are 7" width, but I'll have to check to confirm.
They're some sort of aftermarket rim.. just only have the pair, as bought off somebody else.
There are a few minor scratches and gutter marks (as stated up top), they're really for drifting, drag, or the like where looks aren't so important and you don't want to destroy your fancy rims. Then again, they don't look terrible on the car either.