Learning Resources Jumbo Dinosaurs. Children gain a better understanding of prehistoric companions with this set of realistically detailed plastic toy dinosaurs. Ideal for imaginative play, these durable plastic animals are perfectly sized for little hands. Set includes Tyrannosaurus Rex, Brachiosaurus, Stegosaurus, Triceratops and Raptor. Largest dinosaur (Brachiosaurus) measures 25cm x 24cm H. Comes in sturdy cardboard box for easy storage. Suitable for ages 2+