Pocket Size Calculator 8 Digit Display Basic Calculator Solar, 6 Colors (32). Features: Dual powered: These mini pocket size calculators are powered by solar and battery. It can work in a bright place without battery. If use it in the early morning or night, the screen maybe difficult to read in low light condition. Please insert AA battery ( not included) for continuous and accurate usage reliable design: The mini calculator is with constants for addition, subtraction, multiplication and division, come with 8 digit LCD display, can shut down automatically, bring nice using experience, wide keyboard with raised keys help press the buttons accurately. Specifications: Material: ABS plastic casing Size: 11.4 x 6.4 x 2 cm/ 4.49 x 2.52 x 0.79 inch Weight: 37g Color: as shown in pictures Notes: Please allow slight differences due to manual measurement. Please allow slight colour deviation due to different displays. The product does not contain any battery. It maybe small for adult finger. Compared with some big calculators applied by adults, this calculator has small buttons that adult cannot press the buttons very fast. But this is suitable for children (5-12 years old) Package includes: you will receive rich content of handheld electronic pocket calculators in 6 different colors, such as purple, yellow, blue and more; Sufficient quantity and colors can meet your different demands, and you can share these practical pocket calculators to your fellows and classmates Dual powered calculator: these mini pocket size calculators are powered by solar and battery; It can work in a bright place without battery. If use it in the early morning or night, the screen maybe difficult to read in low light condition. Please insert AA battery ( not included) for continuous and accurate usage Proper size: each elementary calculator measures approx. 11.4 x 6.4 x 2 cm/ 4.49 x 2.52 x 0.79 inch (with angled screen), portable and practical, can be put in pockets and bags, and use whenever need, lightweight with even weight distribution for comfortable calculations while using on the desktop or handheld Nice performance: the dual powered mini calculator is with constants for addition, subtraction, multiplication and division, come with 8 digit LCD display, can shut down automatically, bring nice using experience, wide keyboard with raised keys help press the buttons accurately Wide range of use: these pocket calculators are suitable for both office and school, proper for teachers, professors, home school educators, hobbyists or daily simple calculation, portable and practical; They also can be regarded as nice gifts for elementary school students