Features: This educational science set engages children with the "Wonder Window" experiment to teach the principle of persistence of visual, fostering curiosity in optics and scientific phenomena through hands on interaction. Complete with all essential components like plastic gear, wooden sheets, stands, and motor, this handmade craft set ensures easy assembly for creating a functional model. Ideal for kids and students, it enhances hands on skills and scientific thinking, making learning accessible and enjoyable for youthful learners. Perfect for use in school laboratories, science museums, or innovation workshops to inspire exploration and creativity during educational activities. Encourage discussion on how the human eye processes images and motion while crafting a decorative wooden miniature that adds charm to home decor displays. Specifications: Component: Wood Color: As pictures shown. Size: As pictures shown. Package Includes: 1 set science experiment materials set note: Please allow 1-3cm error due to manual measurement. please make sure you not mind before you bid. Due to the differences between different monitors, the picture may not reflect the item actual color.