DUAL DISPLAY CALCULATOR-Our office calculators realize both parties to witness the calculation process at the same time, avoid each other's repeated verification.Suitable for office, school, market or home use where any calculation is required. CHECK & CORRECT FUNCTION-Quick and easy tax calculation. Check functiollows users to store and check up to 112 steps, which makes reviewing entries and correcting errors possible. CALCULATORS LARGE DISPLAY-Specially designed with 12 Digit large LCD display and tilted screen, which allows accurate screen reading and clear display. BIG SENSITIVE BUTTON-Black panel and white button helps you recognize numbers and operational character quickly and conveniently, also the ergonomic big button gives a comfortable touch and good sensitivity performance. HIGH QUALITY-Our desk calculator is made of high quality ABS material and is well constructed.Digital marks are not easy to wear out, strong and durable, and can be used for a long time.