Abacus Small Portable Children S Puzzle 13 Grades 7 Beads Mental Arithmetic Math Abacus

Abacus Beads: Mathematical enlightenment, flying saucer shaped abacus beads, non stick, dialing smoothly. Easy to Store: Exquisite abacus storage box, high value, cultivate interest, children like it better. Small and Portable: Practical and educational, you can put it in your schoolbag. Item Type: Abacus Material: ABS, Plastic Product Size: Approx. 24.8 x 10 x 1.5cm Celsius 9.8 x 3.9 x 0.6in (Manual Measurement, There May Be Slight Errors)