Calculator Ruler with 8-Digit LED Display 15cm, B Digital Sensitive Button, Clear Display, Portable Multi-purpose for Student

TWO-IN-ONE DESIGN This multifunctional calculator ruler with 8-digit LED display, clear and high visibility scales, allowing you to see the numbers at a glance small and functional, for ideal for students, girls, boys, clerks daily use Proper size to use and carry MULTIPLE USE METHODS Excellent for business,, home, basic budgeting, school, and more 8-DIGIT LED DISPLAY Your calculation process is faster and smoother with sensitive responsive buttons Once pressed, the buttons quickly register and display the corresponding number on the clear LED screen The big size of the buttons prevents you from hitting the wrong button BATTERY POWERED SUPPLY This calculator utilizes 1 piece regular cell battery power (battery included) Easy to replace and Automatic shut-down, and environmental for protection DEISGN Measuring range 0-15cm, add, subtract, multiply, divide, backspace, grand total,%, M+ / M / MRC, On / AC Button, and auto