ITEM NAME:Abacus Soroban Beads Column Kid School Learning Aid Tool Math Business Chin J2Y4 Abacus Soroban Beads Column Kid School Learning Aid Tool Math Business Chin J2Y4 It makes the calculation function of traditional abacus into an enlightening function, suitable for children aged 4-12, and the learning age is 4-10 years old. Children's left and right hands jointly put beads to promote the development of left and right brain balance. Children's eyes, ears, hands, mouth and brain participate at the same time to cultivate children's attention, observation, memory and imagination. It is a good habit to train children to be focused and active. Make children's computing ability increase rapidly, form a good logical thinking ability, promote the development of intellectual potential, and earn a lifetime. Number of beads: 10 beads per row x 20 rows with reset button There is a bead on top and four beads on the top. Give specific visible digital display through beads The non-destructive non-slip rubber feet on the abacus base prevent the abacus from slipping. Features: Education Gender: Unisex Used for: students, teachers Abacus: plastic beads color: white + brown Material: wood + plastic size: 30 * 11 * 2 cm Package Contents: 1 * abacus.The non-destructive non-slip rubber feet on the abacus base prevent the abacus from slipping. It makes the calculation function of traditional abacus into an enlightening function, suitable for children aged 4-12, and the learning age is 4-10 years old.