Description: 【Physics Experiment Equipment】: Liquid counter wall pressure experimenter is designed to demonstrate the pressure of liquids on container walls, making it ideal for hands on physics experiments 【Professional Design】: pressure demonstrator is specifically designed for middle school mechanics and pressure courses, enhancing classroom engagement 【Material】: Physics Experiment is made of glass, ensuring clear observation and reliable durability over repeated use 【Dimensions】: Science Lab Equipment measures 6.5cmx3cmx22cm/2.56inchx1.18inchx8.66inch, making it compact.Easily fits on a lab bench for convenient storage 【Package Included】: Contains 1 Teaching Aid, an excellent physics demonstration instrument ready for teaching or student experiments Specification: Material:Glass Size Chart: 6.5cmx3cmx22cm/2.56inchx1.18inchx8.66inch Package Includes: 1 pressure demonstrator Note: Please allow slightly errors 1-2cm differences due to manual measurement.