Features: new and high quality STEM (Science, Technology, Engineering) learning toy: Through this DIY building toy, kids can construct their very own lantern that uses a hand crank motion to light the LED bulb. Through the construction process, kids can also learn about problem solving and attention to detail when reading the manual. Hands-on fun: The hand crank generator kits toy is easy to build. There is a detailed instructions and video to guid children. Learn through playing: Kids will learn from mechanics of the hand crank generator and how energy is used to generate electricity. The building toy is a safe and interactive experience that keeps kids engaged, which makes it one of the most unique electricity learning toy available. Safe playing: A great and practical gift for children to enjoy and learn. Popular among schools and teachers for an interactive, hands-on learning experiences as well as a safe electricity learning toy in the classroom. Suitable for: Our kids STEM toy contain small parts, not for children under the age of 3. Suggested for Children 7-14 years old. Specifications: Material: Wood Color: As Pictures Show Size (Approx.): Finished Size 14.8x8.3x12cm/5.83x3.27x4.72in Weight (Approx.): 150g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set Hand Crank Generator Kits Toy for kids