Soroban Abacus 23 digits 4 beads Standard Soroban * Soroban only This item was used by my mother, so it's over 30 years old. However, there are absolutely no problems with its use. I don't see any particularly large scratches, but it has been stored at home, so please refrain from purchasing if you are sensitive to such things. #ElementarySchoolStudent #Arithmetic #Learning #MentalCalculation #Soroban