About this 3D model

The abacus is a form of manual calculation aid tool. It originated in China and is an important invention in ancient China. Computers are now very common, but the abacus can still be used to help children understand numbers. This model can fully rely on its own buckles to lock each other, and after assembly, it is very sturdy. Abacus is a form of manual calculation aid tool. It originated in China and is an important invention in ancient China. Computers are now very common, but abacus can still be used to help children understand numbers. This model can fully rely on its own buckles to lock each other, and after assembly, it is very sturdy. Assemble in the order shown in the following diagram: