I wouldn't trust those keys are authentic, ebay has lots of shady people.

 

i would check online and maybe call infiniti itself, because i had a friend that needed some mats for his car and dealer wanted to charge him 300+ dollars i think for them and he just ordered it online and got them for 40, so i would definitley look around cause dealers LOVEEEE to make easy money off of things like that, so just watch out and look around some more