1.[Compatibility]ONLY compatible with Model A1932/A2179/A2337 M1( Macbook Air 13' with retina display and touch id, Release 2018-2020). Please check the model 'Axxxx' on the back of the laptop and choose the correct model number. Not fit for Model A1369/A1466 (MacBook Air 13'/13.3', old version, release 2010-2017) and other models. 2.[Case dimension]Protective case dimension:12 x 8.5 x 0.62 inch. Laptop dimension( MacBook Air 13 inch Model A1932/A2179/A2337 M1): 11.97 x 8.36 x 0.61 inch. Please check your Macbook model and order the correct size case. 3.[Case Design]Two-piece and snap on design makes it easy to put on and take off. Slim light design would add no extra weight and easy to carry in bag. Smooth touch feeling. 4.[Case Effect]Made by high quality plastic materials. Matte effect. The top case is color printed by the unique pattern. Rich and various patterns will give you a unique MacBook.