Reset button: Soroban's reset button is convenient to use. After completing a calculation, press the reset button to return to the original position. Smooth finish: The abacus frame is polished and rounded with no burrs, ensuring comfortable handling. Cognitive development: Using the abacus enhances a child's practical skills and stimulates brain activity, supporting cognitive development. Material and size: This abacus features 13 rods with 5 beads each. It has a plastic frame, beads, and bamboo rods. Dimensions: 24.6 x 7 x 1.8 cm. Design: This soroban-style abacus is designed for quick calculations. It has a durable plastic frame and bamboo rods, making it ideal for learning basic arithmetic. User-friendly: This abacus is easy to use and recommended for math education. Specifications: Number of rods: 13. Material: Plastic frame and beads, bamboo rods. Dimensions (L x W x H): approximately 25 x 7.5 x 2 cm. Package includes: 1 x abacus with 13 rods.