Abacus Wooden Calculator Stars tablets or computers via Bluetooth

tablets or computers via Bluetooth

comparable to the real notebook touchpad

gentle and low noise

The measurement allowed error is +/- 1-3cm

magnet fixed

Abacus Wooden Calculator Stars tablets or computers via BluetoothMaterial: wooden Product size: 23. 5*31*6 cm Objectives 1~2 years old to improve children's cognitive ability 1~2 years old training children's hand eye coordination 2~6 years old enlightenment concept, skilled vocal number number of columns and combinations, practice addition, subtraction Establish the basic concept of children's logarithm, and initially understand the basic structure of the abacus. Can be used to count; Or teach children to do the