Description: 【Educational Tool】: The Educational Single Pole Knife is an essential learning tool for physics education, providing a hands-experience to students for understanding the principles of electrical connection circuit. It is ideal for classroom demonstrations, lab experiments, and scientific projects. 【Quality Material】: Made from premium quality materials, this Single Pole Single Throw is designed to withstand repeated use in a classroom setting. Its construction ensures longevity and reliability, making it a worthwhile investment for schools and educational institutions. 【Easy to Use】: This Single-pole single-throw () switch for making and breaking a single electrical connection circuit. Which is designed with simplicity in minds, making it easy for both teachers and students to use. 【Safe Design】: Safe is paramount in a learning environment, and this Physics Equipment is designed with that in mind It features a safe, low-voltage design with insulated components to ensure the safe of users during experiments and demonstrations. 【Enhances Learning Experience】: The Educational Single Pole Knife Switch not only teaches the principles of physics but also stimulates curiosity and interest in scientific exploration. It helps students visualize complex physics concepts, making learning interactive and engaging. Size Chart: 7.5x3.5x1cm/2.95x1.38x0.39inch Package Includes: 1pcs Teaching instrument(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.