Excavate your own glow-in-the-dark Tyrannosaurus rex skeleton model. This dangerous prehistoric giant comes to life when you excavate its bones with a hammer and chisel and assemble them into a skeleton. The skeleton lets you reenact prehistoric adventures or surprise your friends with its spooky effect when the lights are off. The kit includes 13 skeleton pieces buried in a plaster block, excavation tools, and a descriptive manual.