Practical Function: Desktop calculator with an electronic writing tablet and pen, write while calculating, clear the writing tablet with click, easy to use. Premium Material: The pocket calculator adopts premium ABS shelling and soft silicone buttons, wear resistant, sturdy, and ensures a long time to use. LCD Screen: Practical calculator with a large LCD display screen, easy to read and clear at a glance. Solar and battery double power source, convenient and reliable. Portable Size: Small pocket calculator with 90 flip cover, easy to store and carry, compact and lightweight, will not take up too much space. Wide Application: The calculator is suitable for home, office, school, business, accounting, etc. Specification: Material: ABS Size Chart:16cmx7.8cmx1.2cm/6.30inchx3.07inchx0.47inch Package Includes: 1 Set Calculator Note: Please allow slight errors of 1-2cm differences due to manual measurement.