Features: Constructed from iron materials, ensuring easy operations and precise adjustment of current and voltages as a versatile laboratory demonstration device. This sliding rheostat simulator features strong construction with insulated, oxidized wires wound on a ceramic tube, great for circuit control applications in physics teaching tools. Ideal for educators, students, and laboratory technicians in physics education, supporting hands on learning and experimentation for effective circuit management. Effortlessly fine tunes electrical parameters for functional testing and control in power generation setups, enhancing reliability in diverse physics teaching. Perfect for laboratory demonstrations, research experiments, and regulating excitation, speed control, and motor functions in educational settings. Specifications: Materials: Iron Color: As The Picture Shows Weight: approx.400g Size: As The Picture Shows Package Includes: 1 Set of Visual Sliding Rheostat Simulator note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!