A wonderful intellectual toy for spare time palying. It can add of fun to their lives and simply relaxing after stressed working hours. You must use logical thinking skills in your challenges and use reasoning and induction principles to solve problems. Sudoku puzzle toy, fine craft design, not easy to decay and deform. Features - ColorYellow - Material: wood. - Size: About 22.5x22.5x3.6cm. - Intelligent game is a challenging, fun and fascinating digital puzzle game. - The game could help improve both you and your kids intellectual development of creatvity, imagination and so on. - With fine craft design, not easy to decay and deform. - material with smooth surface design, no thorn, safe and durable for use. - Creative gaming tools, exploring your talents, simply relaxing after stressed working hours. - Intelligent puzzle toy. Users are attracted strongly at all ages. Package list: 1 x Board Game