Rest easy as you're onthemove with your laptop and mp3 player nestled safely away in their cover and case. With customized instructions you can make a sturdy cover to fit most size laptops. The large and small mp3 cases are compatible with the iPod Classic, iPod Touch, iPhone and the Zune. Finished size fits a Laptop: 13 wide x 10 12 long x 1 12 tall. Fully customized instructions included to fit most laptop sizes.