Match these wooden puzzle pairs to make mastering numbers as easy as 1, 2, 3. Color pictures featuring familiar objects illustrate numbers 1-20, and the puzzles are self-correcting, which means that each piece has only one match that fits. That way, children four and up can play independently and learn all the while. The 40 pieces all store in a wooden storage box with a slide-in lid, making the toy easy-access and also mess-free. It is great for number recognition, counting, matching, color recognition, sorting, and simple math skills. Kids can also use the pieces to tell stories or engage in other forms of imaginative play.