With this unique and fun puzzle, its easy to build a detailed 11 model of the king of the Cretaceous period, the Tyrannosaurus Rex. Your new T-Rex friend is easily assembled with the use of the included assembly guide, and makes a great visual aid for a science fair project or other class exhibits. The guide includes information about the T-Rex's life cycle, eating habits, and size, and even a fun Q&A to test knowledge.