Features: Mechanical Mechanism Model for Physics Teaching Crafted with engineered plastic and stainless steel, this robust educational tool ensures durability and stability, solving the issue of fragile traditional teaching aid during frequent classroom demonstrations. Features clearly motion visualization and easy assembly design, enabling hands on exploration of complex physics principles like gear interactions and lever mechanics without requiring tool for quick setup. Ideal for educators and students in schools, universities, and STEM programs seeks interactive tool, enhancing mechanical engineering and physics education. Perfect for classroom lectures, science exhibitions, laboratory experiments, and workshops to observe mechanical principles in action across diverse learning environments. Its versatile configuration allows educators to customize demonstrations, fostering engagement while aligning with curriculum requirements for physics teaching tools and engineering concepts. Specifications: Color: Silver Component: Plastic And Stainless Steel Size: Approx. 12x8cm/4.72x3.15in Weight: Approx. 230g Package Includes: 1Piece Mechanical Model note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color