Yellow Mountain Imports Digit Standard Abacus 27 centimeters - Professional 17 Column Soroban Calculator (Functional and Educational Learning Tool)

Timeless Reliability: A calculator in its classical form, the abacus/sorban 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 26.7 x 6.1 x 2 centimeters Great Portability: At 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-schoolers' education; It can be used in teaching number concepts in remote learning or homeschooling settings; Abacuses are also a proven useful learning device for the visually impaired