For MacBook Air 13.3 inch A1932 / A2179 / A2337 Carbon Fiber Textured Plastic Laptop Protective Case(Black) Tag-Dust Plug Ring light board size: 30cm

Ring light board size: 30cm

Name: Round head accessory adapter

For HP Pavilion ZE4300 series: ze4326 N

Backup battery: CR123A 3V (not included)

For MacBook Air 13.3 inch A1932 / A2179 / A2337 Carbon Fiber Textured Plastic Laptop Protective Case(Black) Tag-Dust Plug Ring light board size: 30cm1. Please check the model number Axxxx on the back of the laptop before purchasing. 2. Polycarbonate material, strong flexibility, scratch resistant and wear resistant, no fingerprints, waterproof. 3. The real machine is opened to fit your laptop precisely. 4. Two piece design, easy to install and remove. 5. Four rubber feet keep your laptop stable and secure. 6. The bottom housing cover does not affect the heat dissipation of the air inlet and