Educational Tool: This suction pump model is an excellent educational tool for middle physics teaching demonstrations and group experiments, helping understand the structure and principle of the suction pump. Easy to Assemble and Use: The instrument is easy to assemble and use, with clear Strudy and : Made of sturdy material, this suction pump model is and , ensuring -lasting use for educational purposes. Suitable for Little Scientists: Designed for , suction pump model is good for little scientists who want to learn while playing, providing a fun and engaging way to explore physics principles. Happiness Teaching: This suction pump model offers the chance to learn while playing, bringing them happiness and excitement as they discover the principles of suction pumps and how they work.