Optimized for Educational Use: The FC-991 ES PLUS is designed with 417 advanced scientific functions, making it perfect for high school and college students tackling complex math and science courses. and Portable: Its compact design ensures it fits easily in a backpack, while the robust build withstands daily student use. Economical Choice: Offered in budget-friendly packaging, this calculator provides all necessary functions without the extra cost of premium packaging. User-Friendly Interface: Features an intuitive layout and easy-to-read display, enhancing learning and problem-solving efficiency. Color: black Material: plastic Package Contents: 1 x calculator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.