Product Type: This is a lever principle teaching instrument, ideal for physics mechanics teaching and experiments. Material: The teaching instrument is made of aluminum alloy, ensuring durability and longevity. Product Dimensions: The size of the lever balance scale and supportis 46cmx27cmx6.5cm, making it compact and easy to handle during experiments or demonstrations. Educational Tool: This lever principle teaching instrument serves as an educational tool for understanding the principles of leverage in physics. Versatile Use: It can be used in classrooms, laboratories, or at home for educational purposes, making learning interactive and fun. . Specification: Material: aluminum alloy Size Chart: 46cmx27cmx6.5cm/18.11inchx10.63inchx2.56inch Package Includes: 1x Lever Balance Scale and Support Note: Please allow slightly errors 1-2cm differences due to manual measurement. 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.