Protective Hard Shell Case Cover Compatible with MacBook Air 13 inch with Retina Display & Touch ID 2020 2019 2018 Model A2337(M1) A2179 A1932 How to confirm the EXACT MODEL of your Macbook? 1) Turn your MacBook over. 2)The model number is located on the bottom of your MacBook, in small prints which says "Model: AXXXX" . "XXXX" are numerical numbers. Features: 1) Sturdy: Made of high quality lightweight plastic, hard case protects your MacBook Air 13 Retina from scratches, dust and dirt. 2) Easily Install and Take Apart: 2 piece snap-on design, this case can be install and taken off easily. 3) Precise Design:The lightweight design allows access to all buttons and features, allowing you to open/close the MacBook unimpeded. 4) Safe Heat Dissipation: The bottom part matches the vent slots of MacBook perfectly, which is for safe heat dissipation. 5) Various Colours: Several stylish and classical colour for choosing. The case adds not only protection but also an elegant appearance to your MacBook. Installation 1. Please find the 4 clips for top cover and 4 cilps for bottom cover. 2. Please attach the bottom cover at the hinge location first, there are 2 clips to secure the back side of bottom cover. 3. Gently push down the 2 side clips of bottom cover. 4. To install the top cover,please attache the top cover at the hinge location first. 5. Then gentley force to snap on the rest clips. * Please contact AJYX Customer Service by email if you have any problems with the product before or after ordering.