If this isn’t the exact model you have, you can still probably find the appropriate Ruban Keyboard Cover model for you by digging around their Amazon page. This particular combination of keyboard cover and case is specifically for the Macbook Old Retina 15-inch model with no CD-R ( Model: A1398). This silicone keyboard cover from Ruban ships with a matching snap-on plastic hard shell for your laptop, which makes it all the more important that you know what model and size MacBook you have.