Digit Standard Abacus 10.5" - Professional 17 Column Soroban Calculator (Functional and Educational Learning Tool)

Experience the art of math with classic 14th Century calculator technology. Ideal for improving mental calculation skills. Timeless Reliability: A calculator in its classical form, the abacus/soroban features a system used before written numerals, and is still used in parts of the world by merchants, traders, and clerks An Ideal Montessori Math Tool: Make math practice more effective; Using an abacus as a math manipulative is a great way to teach kids how to count, equate and compute mentally Modern and Durable: This 17-digit professional soroban abacus is made from quality ABS plastic and measures 10.5 x 2.5 x 0.8 inches (26.7 x 6.1 x 2 centimeters) Great Portability: At 0.26lb (0.12kg), this abacus is made compact and handy so you or your kids can easily take it anywhere; Comes with rounded edges so your hands won't get hurt; Also, it never runs out of power! Arithmetic Education Must-Have: Manipulative tools such as this abacus is an important teaching supplement for your grade-scho