Designed with little ones in mind, each puzzle is self-correcting, which makes it easier for kids to puzzle out the one right answer. Each matching puzzle features one number from 1 to 25 on one piece, and a corresponding number of illustrated animals and items on the other; as they count and match bluebirds, puppies, hedgehogs, and more, your kids will pick up new early math skills as they play. Includes a sturdy reusable box that doubles as a storage container. Ages 3+. WARNING: Choking Hazard. 25 per set.