13-Column Wooden Soroban Abacus – Math Learning Tool with Reset Button & Guide

Vintage Style Wooden Abacus Soroban 13 Column(10.7 In) Math Professional Abacus

Vintage Wooden Abacus Soroban 13 Column Math Tool for Kids & Adults, Guide Inclu

Vintage Wooden Abacus Soroban 13 Columns Math Tool for Adults & Kids, Guide Incl

Light Weight Japanese 13 Column Abacus Soroban Beginners Tool Winding Device

Vintage Style Wooden Abacus Soroban 13 Column(10.7 in) Math Professional Abac...

Educational Vintage Style Abacus - 13 Column Wooden Soroban for Kids and Adults

Premium Abacus Soroban - 13 Column Math Tool with Reset Button - 9.8inch