Like LunaTik, Ikonik’s core is a two-piece metal frame. The halves are held together by long bars with screws at either end. Using the included Allen wrenches, you unscrew the frame, put the iPod nano in, and screw it back up. It’s an easy enough process, but it does take some effort; don’t expect to be taking the nano in and out of the case with any regularity. The frame is much more angular than LunaTik’s, but has very similar…