Abacus Soroban 17 Digits Rods Chinese Japanese Abacus Calculator Educational Tools Abacus Counting Tool for Adults, TeenagerBrown

Abacus Size - 17 positions: 26.3 6 1.5cm (10.3 2.3 0.5 inches). Traditional abacus, a classic tool that can still be used normally.

Use Range - A good tool for math education. Can be used as a classic office calculator, an educational tool for teachers or a gift for abacus collectors

Ideal Educational Tool - Abacus to make math exercises more effective; using an abacus to calculate childrens math ability is a good way to teach them how to count and calculate intelligence

Beautiful and Unique Design - A good gift for children. Soroban style abacus is very suitable for fast calculation. It is strongly recommended to use it in any Math abacus course.