Correct - they are. Mine came in official Nissan boxes and had Nissan stickers, etc on them and fit spot on as you'd expect.
At the end of the day you could end up paying more because these fakes just aren't up to scratch (although I could be wrong). For the sake of the extra £££, just go with ZMANALEX - least you know you'll have no hassles with them.
+1 why go with unknown quantity when we have tried & trusted right here?
Depends which is mre important to you getting rid of the clickin' or having a gorgeous rear end