The name is 'Colour 3 Nail Polish', the black part is # 06 - Ticket To The Show and the lighter one, which says 'new' is, I don't know which number because it doesn't say which it is, but it is called 'Front Row Or Backstage?'
This is how it works:
1) Polish your nail with the black part. Once or twice, it doesn't really has a difference.
2) Polish your nail with the lighter, goldish part. Again, once or twice doesn't really matter.
3) Polish your nial with a transparant nailpolish, so it'll last longer.
I do not know how much this costs, it was in sale and it was a long time ago. But it is for sure less than 4 euro!
Tell me what you think :)