Sturdy lightweight plastic: our MacBook Air 13 inch case protects your MacBook Air 13 from scratches and dings. At only 10 oz: it doesn't add any noticeable weight to your MacBook 13. Including one Keyboard Cover and Screen Protector- Provide full protection for your MacBook keyboard and screen against dust: liquid spill: key wear: contaminates and more. Fully vented for safe heat disbursement: fully access to all buttons and features. Removable: easy to put on and take off that can protect your laptop from scrapes and scratches.