It's based on the Mophie Juicepack air and would probably be about the same size. There would be a very thin layer of plastic for the sliding mechanism which continues to protect the back of your device when the base is slid out. There would be a hinge mechanism to change the angle of the screen, the thicker half of the bottom would be used as the controls to make it heavier.. Yeah I was playing Zenonia and I just really wish I didn't have to use onscreen controls. That game is great, BTW, $5.99 is a little steep but not compared to others, and people speak in modern English in the game which makes it pretty funny.