High quality material: The calculation frame is made of wood, sturdy and durable, non toxic, tasteless, and bright in color. Size: The size of the wooden abacus is 15.7*15*2.75 cm, which is simple and convenient to use. A very good auxiliary tool for children to learn mathematics. Educational toys: The abacus is very helpful to support the development of children's sense of numbers, enhance calculation ability, and bright colors are easy to identify. Improve hand eye coordination: When they grasp and slide the magnetic beads, they will improve hand eye coordination and increase finger flexibility and arm strength. The perfect gift: very suitable for children, daycare, preschool graduation gifts and birthday gifts,This is a good choice for teaching kids how to count and learn math.