This is a creative science kit that your little excavator will enjoy. It is a complete skeleton of a T-Rex that is buried inside a block of clay rock. Children must use their imagination and problem solving thinking skills to carefully excavate or "dig" the bones out with the tools provided. Once this task is completed it is time to assemble the skeleton. This kit comes complete with T-Rex bones encased in excavation rock, archaeological digging tools and brush plus eye goggles. It also comes with a 32-page full-color Dinosaurs book.