Description: DIY Assembly Model:Stem Science Kits can Exercise hands on ability and understand the structure and principles of The Rope Climbing Robot model, which can exchange its arms to perform a forward climbing action on a rope.Interactive: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 interaction.Development: The Diy Technology toy can cultivate children's creative thinking, practical skills, scientific knowledge, communication, and interest cultivation.Occasion:DIY mechanical Model Kits cultivate children's interests and hobbies.suitable for learning activities, technology projects, scientific experiments, etc.Creative Toy: This 3D Wood Puzzle Assembly Model is interesting and creative, and can be used as a gift for children, students, or friends. Size Chart: 12cmx5cmx4cm/4.72inchx1.97inchx1.57inch Package Includes: 1 3D Wood Puzzle model(3 Pack) 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.