Product overview A wooden combination lock model kit that students assemble by themselves to explore mechanical principles. Designed for classroom experiments and creative projects, this hands on set turns abstract scientific ideas into a visible, functioning mechanism. Key benefits Builds practical skills: Step by step assembly develops fine motor control, tool handling, and independent work habits. Reinforces learning: The working combination lock provides a tangible demonstration of mechanical concepts and cause and effect. Encourages problem solving: Assembly and adjustment tasks promote logical thinking, planning, and trial and error learning. Durable construction: Wooden components are made to withstand repeated assembly and classroom use. Suitable for teaching: Designed for primary and secondary school students and adaptable to different lesson plans. Main attributes Function: Self assembly model that becomes a functioning combination lock, suitable for hands on experiments and demonstrations. Compatibility: Intended for primary and secondary school education, STEM clubs, and home learning environments. Material: wooden parts that assemble without specialized electronics or batteries. Size and portability: Compact kit size makes it easy to use at a desk, in a classroom, or to transport between lessons. Performance: Reliable mechanical action that clearly illustrates the relationship between parts when assembled correctly. How this product solves common teaching challenges Makes abstract theory concrete by converting classroom explanations into a visible, mechanical example. Reduces preparation time for teachers by providing a ready to assemble kit with durable parts for repeated student use. Supports differentiated learning by allowing students to progress at their own pace and to explore modifications during extension activities. Typical use scenarios Classroom science lesson: Use the kit during a lesson on simple machines or gear ratios to demonstrate mechanical linkage and combination mechanisms. After school STEM club: Small groups assemble the model together to practice collaboration, then test different combinations and document results. Science fair or projectbased learning: Students present the assembled lock as part of an experiment or design challenge, explaining how each component contributes to the mechanism. What is included and how to integrate Wooden components sized for student assembly and clear mechanical action when completed. Use with basic classroom tools and supervised activities appropriate to the students level. Integrates easily into lesson plans on physics, engineering, or general problem solving activities. Suitable for teachers and parents who want a hands on, durable, and educational model to support experiential learning and to give students a direct, functional example of mechanical systems.