A CLASSWIZ series scientific calculator capable of multi-functional calculations. - Model: fx-550AZ - Type: Scientific Calculator - Functions: Multi-functional calculations - Display: Large screen display - Features: CLASSWIZ series My son purchased this for high school entrance in 2024, but he dropped out after the first semester, so it's hardly been used. There's a mark on the back of the main unit where a name sticker was removed, but no cracks, and it's very clean. The batteries will be removed before shipping. Includes instruction manual. #ScientificCalculator #CASIO #Casio #fx550AZ #ClassWiz #Mathematics #Engineering