Safe Materials: The materials are used to make the volcano model are green ABS environmentally friendly materials, thus making the model or toy odorless and harmless, and children can have fun with it confidently. Light Spray: Inject water into the mouth of the water storage zone of the model, then press the power button, the crater will spout the spray, and light will be automatically turned on, which makes the model more vivid in the night. Vivid Shape: The surface texture of the model is clear, and its shape is very similar to the real volcano. And the toy can be cleaned by being wiped with water, and moreover, expose the toy to the for a long time is not permitted. Education Promoter: This model allows you to master the principles of volcanic eruptions during the game, which is suitable for building storage zone of knowledge of children and assessing their knowledge. Perfect science fair project or gift for kids 6-12 who are interested in volcanoes, earth science, or geology.