17 Digit Rods Abacus Soroban Chinese Math Calculator Counting Aid Educating Tool

Description

Product Description
Features:
The abacus is a calculating tool that was used for centuries before the adoption of the written modern numeral system.
The abacus is still widely used by merchants, traders and clerks in certain parts of the world such as Asia and Africa.
In addition to being a professional tool, the soroban or abacus is also an educational tool.
The abacus is widely used in teaching children counting and mathematics.
People who become proficient in the use of the abacus almost automatically become adept at mental calculation.
This abacus has a plastic frame. Its classical, standard design allows for its ease of use as a professional and educational tool.
Abacus Tool only,other accessories demo in the picture is not included.
Specification:
Material: ABS
Dimensions: app.26x6cm/10.24x2.36in
Color:  Brown,as the picture shown
Quantity: 1 Pcs