High-Quality Materials: This 17-digit professional soroban abacus is made from high-quality ABS plastic, with shiny smooth beads that are durable and sturdy, measuring 25*6.4 cm, and comes with a convenient reset button. Educational Learning Tool: Makes math practice more effective; using an abacus for children's math is a great way to teach them counting, addition, and mental calculation. Lucky Abacus: Symbolizes the beautiful meaning of opportunity and wealth. The classic professional soroban abacus is still used in parts of the world by merchants, traders, and clerks. It's also a fantastic decoration for your home! Great Gift Idea: You should never miss this educational toy if your children have shown an interest in math. It enables your children to perform simple counting operations and more complex calculations. The abacus is a lovely and educational gift for boys and girls. 100% Satisfaction Guarantee: If you have any questions, please feel free to contact us, and we will provide you with the most satisfactory service.