Triceratops Dinosaur X-Ray Fun 45 piece model is easy to assemble and a great way to engage young science students in the anatomy of this beautiful pre-historic creature. Fun and educational, this kit allows kids to build and learn. This model features a transparent side to show internal organs and structures that will fascinate kids who are studying dinosaurs. Measuring approximately 7 inches long and 4 inches tall the Triceratops X-Ray Fun makes a great resource for hands-on vision learning to help children understand anatomy. Recommended for ages 6 and up this kit makes a great introduction to understanding dissection of living organisms and how paleontologists recreate the pre-historic reptiles body. The triceratops is one of the most loved dinos from the late Cretaceous period and every child recognizes this three horned plant eating dinosaur!