The product is a 4 pack of hard shell cases designed specifically for 13.3" Intel MacBook Air models from 2010 to 2017. These cases provide durable protection for the laptop while maintaining full access to ports and functionality. Made by various manufacturers, the cases are designed to fit the specific dimensions of the MacBook Air models, ensuring a secure and snug fit to keep the device safe from drops and impacts. Perfect for users looking to add extra protection to their MacBook Air without sacrificing style or functionality.