Description: DIY Assembly Model:Wooden Craft toy can Exercise hs on ability underst the structure principles of The Visual temporary misalignment model is composed of switches, motors, multiple gears, wooden boards, etc.Interactive:Kids Physical Science Experiments Toy Create a harmonious parent child atmosphere for the family, allowing children to improve their collaboration communication skills during the interaction.Development: The Diy Technology toy can cultivate children's creative thinking, practical skills, scientific knowledge, communication, interest cultivation.Occasion:DIY mechanical Model Kits cultivate children's interests hobbies.suitable for learning activities, technology projects, scientific experiments, etc.Creative Toy: This 3D Wood Puzzle Assembly Model is interesting creative, can be used as a gift for children, students, or friends. Size Chart: 12cmx6.5cmx16.5cm/4.72inchx2.56inchx6.50inch Package Includes: 1 3D Wood Puzzle model Note: 1.This is not infant toy, please take away from children to avoid eating.2.Please allow slightly errors due to manual measurement different monitors.