Kids can match these wooden puzzle pairs to make mastering numbers as easy as one, two, three! Groups of different objects illustrate numbers 1-20, and the puzzles are self-correcting because each puzzle piece has only one match that fits. It's a great way for children to play independently and learn at the same time. The puzzle includes 40 high-quality wooden pieces, and comes in a sturdy wooden box with a slide-in lid for easy storage and accessibility. Each colorful puzzle piece features familiar items such as stars, cupcakes, jelly beans, baseballs, acorns, bananas, and more. The Self-Correcting Number Puzzles help kids practice matching and counting skills, eye-hand coordination, and fine motors skills. Finding the correct matching piece and solving a number puzzle can also help kids feel a sense of pride and accomplishment. It makes a great gift for preschoolers and young learners ages 4 and older, for hands-on, screen-free play.