With flip cover design, this calculator can protect buttons and screen well to ensure long service life. The calculator, which has erasable writing board design, can allow you to write while calculating. This calculator is practical, which can meet the needs of many numerical fields such as math, algebra, fractions, trigonometry, statistics and other data processing calculation and bring convenience for your daily study and work. Made of high quality ABS, LCD screen and silicone material, this product is lightweight and durable to use. The calculator, which has large LCD display design, can allow you to read the data effortlessly. There are 4 styles for you to choose from. It is suitable for students, teachers, businessmen and so on. Item Name: Calculator Material: ABS, LCD Screen, Silicone Style: A: Solar+Battery, B: Battery, C: Solar+Battery, D: Battery Battery: 2 x CR1220 Button Batteries (Included) Features: High Accuracy, Standard Function, Sensitive Buttons Size Details: A, L: 16cm/6.3", W: 7.8cm/3.07", H: 1.28cm/0.5"(Approx.) B, L: 16cm/6.3", W: 7.8cm/3.07", H: 1.2cm/0.47"(Approx.) C, L: 16cm/6.3", W: 7.8cm/3.07", H: 1.2cm/0.47"(Approx.) D, L: 16cm/6.3", W: 7.8cm/3.07", H: 1.2cm/0.47"(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Calculator