Features: brand new and high quality 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, office clerks daily use. Proper size to use and carry. 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. Durable and reusable. Automatic shut-down, energy saving and environmental for protection. ALL-IN-ONE DEISGN. Measuring range 0-15cm, add, subtract, multiply, divide, backspace, grand total, %, M+/M-/MRC, On/AC Button, and auto power-off. MULTIPLE USE METHODS. Excellent choice for business, office, home, basic budgeting, school, and more. Specifications: Material: Plastic Battery: 1 x Cell Battery( Included) Color: Pink; Blue; Yellow; Green Size: Approx. 15x5cm(LW)/5.90x1.96in Weight: Approx. 100g Package Includes: 1 Piece for Smart Calculator Ruler note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!