Description: 【Fun and Entertaining】Brain teaser toys provides endless hours of fun while improving your child's logical thinking, observation skills and mathematical reasoning. 【Interactive Parent Child Game】 Not only is this chess puzzle perfect for kids, but it's also a great way for parents to bond with their children while playing together. 【Colorful Design】 Number puzzles game with a bright and colorful chess that will attract your child's attention and keep them engaged throughout the game. 【Educational】 Board games helps kids learn numbers, enhance their focus and concentration, and develop thinking skills. 【Easy To Use】The game is easy to use and comes with manual that are clear and easy to understand. Size Chart: Sqaure:9cmx9cm/3.54inchx3.54inch Package Includes: 9 Sqaure 81 Chess (9 Colors) 1 Game Manual Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.