Description: DIY Assembly Model:Light Reflection Toy can Exercise hands on ability and understand the structure and principles of The Plane mirror imagingInteractive:Kids Physical Science Experiments Toy Create a harmonious parent child atmosphere for the family, allowing children to improve their collaboration and communication skills during the interactionDevelopment: The Diy Technology toy can cultivate children's creative thinking, practical skills, scientific knowledge, communication, and interest cultivationOccasion:DIY Homemade Periscope Model Kits cultivate children's interests and hobbies.suitable for learning activities, technology projects, scientific experiments, etcCreative Toy: This DIY Periscope Toy is interesting and creative, and can be used as a gift for children, students, or friends Size Chart: 33cmx4.2cm or 12.99inchx1.65inch Package Includes: 1 DIY Periscope Toy 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.