1. Weight: about 340 grams
2. Size: about 24.5x25.5x1.7 cm
3. Material: Plastic
4. Applicable age: people over 3 years old
5. Accessories: game table x1, number block x81+ spare chess pieces, manual
6. Features: cultivate the sense of number, exercise thinking, large board design, with spare number blocks, 120 question cards, numbers on both sides of the number, black side is used to solve the problem, red side is used to solve the problem, portable port design, convenient to carry, storage design, convenient placement, easy to find chess pieces