Description
Standard Soroban (Abacus) / 23 Digits [43300]. East Abacus - Soroban. Very popular. 1 ball (having a value of five) and 4 balls (having a value of ). East Abacus - Soroban. Very popular.Current standard typebirch ball, ebony frame / 130.62.5 (inch) / 5.7 (oz) / Japan Import1 ball (having a value of five) and 4 balls (having a value of )