Abacus for the visually impaired｜英語商品詳細

Abacus for the visually impaired

Abacus for the visually impaired

Brand name：Abacus for the visually impaired

No.：M12000
Size：W155×D83×H15㎜、Weight:106ｇ
Price：¥18,000

This abacus was designed to be used by people with visual impairments. Red felt is placed on the back of the beads, so the beads do not move on their own when the abacus is moved up, down, left, or right. Calculations can be performed by moving the beads up and down with your fingers.