Description: Product Type: This is a Physics Experiment Equipment, specifically a J2307 Electrostatic Charge Distribution Experimental Apparatus, ideal for teaching and learning purposesMaterial: The apparatus is made of metal, ensuring its practicalty and longevityProduct Dimensions: With dimensions of 21cmx17.5cm/8.27inchx6.89inch, this experimental apparatus is compact and easy to handle, making it great for classroom useFunction:The cloth electrical appliance is used in the physical electrostatic experiment of the middle school, and is used to demonstrate the charge distribution on the conductor in the state of electrostatic equilibriumEducational Tool: This physics experiment equipment serves as an greatt educational tool for physics experiments related to electrostatic charge distribution, enhancing the learning experience in a practical way Specification: Material:Metal Size Chart: 21cmx17.5cm/8.27inchx6.89inch Package Includes: 1Physics Experiment Equipment Note: Please allow slightly errors 1-2cm differences due to manual measurement.