Planet Projection Toy: This Scientific Solar System Planet Voice Projection Toy allows children to better understand the solar system and planetary knowledge in a lively and interesting way. 24 Images: This solar system model kits for children comes with 24 slides, providing detailed introductions to each planet in the solar system, enhancing children's astronomical cognitive abilities. Educational Toy: As a STEAM educational toy, it combines science, technology, engineering, art and mathematics to cultivate children's logical thinking and exploration abilities. Mysterious Toy: The astronomy creates a mysterious space for children, stimulating their curiosity. Perfect Gift: planetarium galaxy is an ideal birthday gift for children that allows them to learn while playing and enjoy the fun of science. Specification: Material:PP Stainless Steel, Power Supply:3 1.5VAA(not included) Size Chart: Base:17cmx17cm/6.69inchx6.69inch Projection Ball Height: 21cm/8.27inch Slideshow: 5.5cm/2.17inch Package Includes: 1 Set Planetary Voice Projection Toy (Assembly Required) Note: 1.This is not infant toy, please take away from children to avoid eating. 2.Please allow slightly errors due to manual measurement and different monitors.