Soroban style abacus, plastic frame, 17 digits One bead above and four beads below Give concrete visible display of numbers by beads A very useful tool in general mathematics education Widely used by kids, accounting students, merchants, traders, etc

• Trevi Plastic Abacus Arithmetic Soroban Kid's Calculating Tool 17 Digits

Trevi Plastic Abacus Arithmetic Soroban Kid's Calculating Tool 17 DigitsTrevi