Calculator Writing Tablet LCD For School Accounting Calculations Black : Healthy and eco-friendly: LCD without blue light is used to protect the eyes, you do not use the calculator, you can also put it on the desk notebook Solar button battery, long-lasting battery life, more environmentally friendly and energy-saving Two functions in one: Calculators, writing tablet, with 12-digit display, the numbers are readable at a glance, write while counting, very convenient to save Comfortable Silicone Button: The square button is designed with sensitive buttons and comfortable hand feel, quiet and silent for a more comfortable touch feeling and quiet use Small and portable: Clamshell design calculators make it easy to carry, they are an ideal choice for business at work, accounting calculations, student calculations, home use, etc. Multiple Writing: Dust and ink free calculators, handwritten LCD, with the help of the erasure button you can clean the whole with one click - Inner mesh panties Material: plastic; sizes: 17x15 cm/6.69x5.91 inch contains: 1 . Tablet calculators