Features: brand new and high quality Classic Sudoku Game Board: The classic Sudoku game board equipped with a wooden base board and 16 animals cards, and 2 question cards, 2 answer cards and rule card, pick up and raise a question, 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 Stimulation Game Board: Multi-color Sudoku puzzle board, rainbow color chess pieces with well stimulate children's desire to explore, the concept of teaching in fun to attract kids’ concentration, exercise their quick memory, exercise and stimulate their hand & eye coordination. Educational Busy Board: The busy board with great educational training for kids, improve their abilities of hand-on, instant memory, cultivate cognitive ability of color number, 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. Specifications: Material: Wood Size:Approx.45x45 for cm/17.71x17.71 inches Package Includes: 1 Set Sudoku Puzzle Game Toys note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.