3 years & up. Find out what's behind the pebbled skin and searching eyes of the dinosaurs with this Dinosaur Skulls set. They are perfect for educational projects, traveling, collecting, and imaginative play. You can even create a sensory bin with sand and dirt and have children dig and discover dinosaur skulls like a true Paleontologist! Contains eleven distinctive skulls: Carnotaurus, Velociraptor, Brachiosaurus, Oviraptor, Nigersaurus, Diplodocus, Dilophosaurus, Dracorex, Triceratops, Tyrannosaurus Rex, and Parasaurolophus. This set comes in a reusable acetate tube that snaps open and closes for easy storage. Dinosaur skulls measure from 1.25" to 3.75". Non-toxic and BPA free.