Designed with little ones in mind, each puzzle is self-correcting, which makes it easier for kids to puzzle out the one right answer. 3-Letter Word. Each puzzle features one simple three-letter vocabulary word, as well as a full-colour illustration that matches the word in question; from BAT and HEN to DOG and BUS, your kids will pick up new spelling skills as they play. Includes a sturdy reusable box that doubles as a storage container. Ages 3+. WARNING: Choking Hazard. 20 per set.