Features: Classic Sudoku Board Game: The classic Sudoku game board equipped with a wooden base board & figure chess pieces, and a question book, pick up and raise a question as instruction book, guide kids to solve the problem to improve their logical thinking skills. Selected Qualification Material: Made of qualified solid hard wood, well polished and smooth edges as well as wear-resistant, non toxic colorful water painted safe friendly to your kids. Sensory Enhancement Chess Game Board: Round edges chess Sudoku puzzle board, chess bricks, and various difficulties questions with well stimulate children's desire to explore, the concept of teaching in fun to attract kids' concentration, exercise their logic thinking, mental arithmetic ability, exercise and stimulate their hand & eye coordination. Brain Developmental Table Toy: The Sudoku board game with great educational training for kids, improve their abilities of independent thinking, cultivate & stimulate their problem solving skills and further right brain development. for Ideal Gift for Kids: Suitable for kids as birthday gifts, Christmas gifts, and encourage them free to explore their small world and brain training, which also a perfect interaction game for parent-children. Package Includes: 1 Set Wooden Sudoku Game Chess Board Specifications: Product Dimension: approx. Wooden board 22.5 x 22.5cm/8.85 x 8.85 inch Material: Wood Color Option: Blue/Pink Net Weight: approx. 600g/1.32 lbs note: Warning: The toy may contain small pieces and need to pay attention to the swallowed risk. Please allow 1-2cm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item.