Take out the stopper and pour the water into the reservoir, turn on the spray switch, press it to spray, and the spray port is illuminated Realistic volcano shape, with dinosaur sound, light and spray effects, easy to simulate real scenes The material is playable, resistant to falling, breaking, and not easily deformed. Great toy for kids to learn some science and physics knowledge about erupting volcano. With dinosaurs and other models, kids can create a dinosaur world.(dinosaur is not included) Specification: Material: PVC Size: approx. 18x17x11cm/7.1x6.7x4.3 inch Package Includes: 1 Piece Volcanic Eruption Model Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.