Whether you're a professional or in search of a sturdy digital ruler for kids, look no further! Our digital ruler is the perfect choice for you. Using good workmanship, the slide ruler can help your kids themselves learn math better, easy to use. Features -Color:Pink -Material:Plastic -Size:26.00X4.00X0.50cm/10.22X1.57X0.20in -Specifically designed for children to learn math and arithmetic, it can help develop their mathematical thinking abilities. -The ruler adopts sturdy material and good workmanship, you can use for long term. -Its unique design helps children understand addition and subtraction, making it easier for them to learn math. -This math learning slide ruler is a good tool for arithmetic enlightenment and a wonderful present choice for kids. -Suitable for kids who are starting to learn arithmetic, easy to be taken to kindergarten or simply use . Package list: 1 x number ruler