Follow your imagination into a prehistoric time as you explore the real world of engineering with the Meccano Dinosaurs 10 Model Set.Builds 10 dinosaurs including a T-Rex, a Triceratops, a Raptor and a Pterodactyl. Build any model one at a time.The set features new articulating spine joint and lenticular eyes to give your creations life like movement.The fully built T-Rex measures 13" long X 3" wide X 5.5" tall. For ages 8 and up. No batteries required.