I bought the product for my 2-SIM (nano-size), because I would like to use this in my iPad, iPad (4th generation), however, only supports micro-SIM card. The nano-SIM fits accurately into the adapter and is secured even by adhesive on it. The adapter itself fits very well into the SIM Kartentray of iPads. I am completely satisfied with the product, it does what it should. And the little bonus in the form of 2 Maoam's in the packaging of the seller I found nice. Clear 5 Stars!