This Casio FX-9750GII Graphing Calculator comes with a protective cover and has been tested to ensure proper functionality. It is a reliable tool for business, industrial, and office use, with features that include calculus and a regular-sized display screen. The calculator is powered by batteries and is handheld, making it easy to take with you wherever you go. Whether you need to calculate complex equations or keep track of finances, this Casio calculator is a great choice. The calculator is a Graphing Type with a Regular Key Size, which is perfect for all sorts of calculations. It belongs to the Business Industrial, Office, and Office Equipment categories, making it an ideal tool for professionals and students alike. The model number is FX-9750GII and it is manufactured by Casio. With this calculator, you can do all the necessary calculations without worrying about its condition, as it has been tested and is in good working order.