Griffin Wave Case with Interlocking Closure and EasyDock for iPod nano 4G (Black) Top & bottom of case held together with elegant wave shapes on sides. Durable, beautiful polycarbonate material protects against bumps and scratches. You retain full access to ports, controls, and display. Slide off bottom of case to quickly use iPod in Universal Docks. Compatibility: iPod nano 4G Durable, beautiful polycarbonate material protects against bumps and scratches You retain full access to ports, controls, and display Slide off bottom of case to quickly use iPod in Universal Docks Includes full-coverage static peel screen protector and premium cleaning cloth