This number pad fits my Macbook snugly, as close as possible to where the number pad should be. The slim profile allows it to sit almost flush with the laptop's surface, but it has a slight incline that makes it feel a bit more like typing on a traditional desktop keyboard or adding machine. This little tilt is great for those of us who need to use it frequently. I had a malfunction 4 months after purchase (keys 7, 8 and 9 suddenly stopped responding). I sent a message to Jukegear and they responded almost immediately and sent me a replacement. +++++ for customer service. Mistakes are frustrating, but nothing can replace the company behind their product. Highly recommended and for the price I definitely can't complain.