KASTWAVE Soroban, Plastic Abacus with 13 Rows, Chinese Calculator, Counting Tool Reset Button

• Reset button: The reset button of the Soroban is very convenient to use. When you finish processing a set of data and continue to the next set of data, gently press the reset button to return to the initial state • Increase intelligence: Using the abacus increases the childs hands-on ability and stimulates the activity of brain cells, thereby improving the childs intelligence level. • Perfect workmanship: The frame of the Soroban is polished and round without burrs, so you can use it at ease. • Policy: Do not hesitate to contact us, every problem will be solved as best as possible. • Material and size: The Soroban is 13 grades and 5 beads. It consists of a plastic frame, beads and bamboo poles. Its size is 24.6x 7x 1.8cm