Product information: Toy material: wooden Applicable age: children (3-6 years old) Color: Numeric Calculator Product elements include: Operation panel 1pcs numbers 1-20 Symbol plus, minus, equal to copy pen 1pcs 20pcs each of three-color operation wooden beads Operation panel: 39.7*22.7*1.5 cm Numbers and symbols building blocks: 4.7 * 4.7 * 1.5 cm Copy pen: 8.7 cm long and 1.2 cm in diameter Operation wooden beads: 1.5cm in diameter Packing list: Digital building blocks*1

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