This educational toy includes four different puzzles: T-Rex, Spinosaurus, Triceratops, and Stegosaurus. There is an added bonus! Turn off the lights to see their glow-in-the-dark skeletons. These puzzles foster collaborative educational play that teaches children about the dinosaurs' skeletal systems, develops memory skills and improves spatial reasoning. Each puzzle has different color backgrounds for easy sorting and Linda Bleck's artwork brings these ancient giants back to life.