1. Popular science education: This set uses 3D holographic projection experiments to popularize scientific knowledge such as optics and physics to children and students, and cultivate their scientific interests and practical abilities.2. Handmade: The set contains a wealth of handmade materials, including lenses, reflectors, 3D holographic films, etc., allowing children to exercise their hands-on skills and creativity during the hands-on making process.3. Interactive experience: Through the hand-made projector, children can watch 3D holographic images and experience immersive visual effects, making learning more interesting and interactive.4. Safe and reliable: This set is made of environmentally friendly and non-toxic materials and complies with relevant national safety standards to ensure the safety of children and students during use.5. Parent-child interaction: This set is suitable for parents and children to complete together to enhance parent-child relationship and explore the mysteries of science together.