Comprehensive primary physical optics experiment box with a complete set of optical equipment and adjustable light sources for hands-on learning with your child. Experiments you can perform include: - Straight-line propagation of light - Law of reflection - Law of refraction - Exploration of lens imaging - Pinhole imaging - The converging effect of concave lenses on parallel light - The converging effect of convex lenses on parallel light - Total internal reflection - The three base colors of light Key benefits: - Learn by doing: conduct experiments anytime and anywhere to understand optical principles - Develop core skills: improve hands-on ability, observation, analytical thinking, and problem-solving - Support academics: strengthen memory, stimulate interest, and potentially improve grades Design and usability: - A scale on the guide rail assists easy observation and understanding of optical rules - Lighter than traditional optical tables, with easy assembly and compact storage Use scenarios: - Home learning: parent-child science sessions that combine inquiry with play - Classroom or school clubs: teacher demonstrations or student-led labs - After-school programs: tutoring or enrichment sessions to build confidence in optics