【Special Material】This basic calculator is powered by solar energy and can be used in a well-lit area without batteries. The solar panel provides enough power for the calculator when used in a light environment. Even though it is a standard calculator, it still has several basic functions such as addition, subtraction, multiplication and division. 【Unique Size and Design】This calculator for school is small in size, only 4.72*2.7 inches.Mini size allows you to put it in your pocket casually, and it will only take up a little bit of space when you put it in your bag.The 8-digit digital display allows you to do 8-digit calculations, which is enough for daily use, and the large display makes it easier for you to read. The buttons are comfortable, durable and clearly labeled, making it easy to use for users of all ages. 【Wide Use】This kids calculator, not only suitable for kids to use in school, but also suitable as office supplies to help workers to do calculations. This calculator is suitable for many occasions: business office, home, school and so on. 【Multiple Color Choices】We provide you with three different color calculators, pink calculator, white calculator, blue calculator. bright and fresh colors can relieve your fatigue and make you feel happy when you are working or studying. 【After-sales service】If you have any questions about the product, please feel free to contact us. We will reply you as soon as possible! Hope you have a good shopping experience!