Rush Hour Jr. is one of ThinkFun's popular stem toys for boys and girls, and is the junior version of international bestseller Rush Hour. It's a traffic jam game that comes with 40 challenges of increasing difficulty, from beginner to expert, and is one of the best gifts you can buy for kids who like smart games and a challenge. Rush Hour Jr. is made with high quality components, and comes with a very clear and easy to understand instruction manual - you'll be able to play within minutes of opening the box. Like all of ThinkFun's games, Rush Hour Jr. is built to develop critical thinking skills. Playing through the increasingly difficult challenges will improve logical reasoning, spatial reasoning and planning skills, all through fun gameplay.