1. Learning Meaning: Abacus allows people to visually and tangibly move beads as they count, add, subtract, multiply, identify place value, and more.
2. Comfortable Hand Feeling: Abacus beads are polished smoothly and finely, particles are full, and workmanship is fine and rigorous to promote ease.
3. Made Of Materials: Math Concepts Blind Abacus is made of ABS materials, and not easy to damage, can be used for a long time.
4. Main Function: Abacus for the Blind for teaching children and for adults to do quick calculations.
5. Fine Production: Design of rounded corners, no corners, will not scratch the hands, and it is safer to use.
Spec:
Item Type: Abacus for The Blind
Size: Approx. 16 x 9 x 1.1cm/6.3 x 3.5 x 0.4in
Material: ABS
packing list:
1 x The Blind Abacus