Description
This 15- digit professional abacus is made of high- quality ABS plastic and measures 23. 4* 6. 5* 1. 50cm. An abacus that makes math exercises more effective; using an abacus to calculate ' s mathematical ability is a good way to teach them to and calculate intelligence.
Features
- Material: Plastic.
- Size: About 23. 4* 6. 5* 1. 50cm/ 9. 2* 2. 55* 0. 59inch.
- Color: Green, Brown.
Package Including
2 x Abacuses
This 15- digit professional abacus is made of high- quality ABS plastic and measures 23. 4* 6. 5* 1. 50cm. An abacus that makes math exercises more effective; using an abacus to calculate ' s mathematical ability is a good way to teach them to and calculate intelligence.
Features
- Material: Plastic.
- Size: About 23. 4* 6. 5* 1. 50cm/ 9. 2* 2. 55* 0. 59inch.
- Color: Green, Brown.
Package Including
2 x Abacuses