Description: Learn through playing:Kids will learn from the mechanics of the small fan and how fan or other appliances work.Wood puzzle: Wooden science Kits, DIY wood Puzzle Toy.Educational:DIY experimental toy that can cultivate interest in physics and science, and can also help children improve their hands on skills,thinking, exploring, and creating ability.Features: Puzzle fan Science Experiments can use your imagination to create your own toys, and increase the fun between parents and children, It can improve children abilities of creativity and practice.Perfect Gifts:Montessories science Toy is Great for DIY subjects, science education, development of hobbies and interests. A wonderful birthday gift toy, collectibles for kids and adults. Size Chart: 9cmx7.5cmx18cm/3.54inchx2.95inchx7.09inch Package Includes: 1 wood small fan Note: Please allow slightly errors due to manual measurement and different monitors.