1. Before purchasing, please check the model number on the back of the notebook: Axxxx, and confirm the regional version of the notebook. 2. Protective shell material: polycarbonate. 3. Perfect fit for your device, ultra thin, super light and stylish and extremely durable. 4. Two-piece design case, easy to install and remove; four rubber feet keep your laptop stable and safe; the bottom shell cover is ventilated to facilitate heat dissipation. 5. The outer surface coating delivers superior scratch resistance and protects from scuffs. 6. Fully access to all ports, buttons and connectors.