Product Highlight: This Wind Maker Kit is a perfect educational tool for creating a wind, providing a learning experience. Material: Made of high quality durable plastic material, ensuring durability and longevity. Product Dimensions: With a compact size of 11cmx19cm/4.33inchx7.48inch, this wind simulator is easy to handle and perfect for classroom demonstrations or at home experiments. Easy to Use: This Science Education kit comes with a bottle, making it simple to create your own wind, improving creativity, stimulate potential and train children's practical ability. Educational Science Toys: This Wind Simulator Kit is not only interesting but also educational, making it an excellent tool for teaching about weather phenomena and science behind tornadoes. Size Chart: 11cmx19cm/4.33inchx7.48inch Package Includes: 1Wind Maker Kit Note: Please allow slightly errors due to manual measurement and different monitors.