The J23054 physics experiment apparatus features precisly metal probes for accurately potential difference measurement, solving traditional errors in physics education with innovative visualization of equipotential surfaces. Designed for educational environments, this physics teaching instrument easy assembly, allowing quick setup of experimental devices during physics classes and lab demonstrations. Ideal for physics teachers and students, this electric potential demonstrator apparatus transforms abstract concepts like electric field distribution into hands on experiments through intuitive, reusable components that simplify electromagnetic theory. Perfect for laboratory demonstrations and classroom activities, this physics apparatus visually maps electrostatic fields, making potential difference concepts tangible for school physics curriculum requirements. Made from ABS with dimensions of 25x20cm, this single set J23054 model provides long term durability for repeated classroom use while maintaining measurement accuracy for potential and equipotential surfaces experiments.