Package List 1 x teaching instrumentFeatures - It is a good helper for teachers, parents, train teachers, professors, researchers, etc Liquid Convection Demonstrating Tool.- Constructed by using high-grade material, ensures it safety and can use it with confidence liquid convection glassware.- Mainly in elementary physics teaching, to explain liquid convection fun experiment device.- Material: Glass Scientific Experiment Device.- Let students learn liquid convection in interesting experiments and improve their physics performance Teaching Equipment.- Size: 18.50X14.50X2.00cm/7.27X5.70X0.79in Transparent Equipment.- Color: Transparent Physics Equipment.- Lightweight and portable, more convenient to store and carry. It's great equipment for students to learn the liquid convection Teaching Aid.Goods InformationIt is a good helper for teachers, parents, train teachers, professors, researchers, etc.material A perfect physics teaching aid for you.liquid convection demonstrator Are you still looking for a teaching apparatus to let your know the liquid convection? Then, our experiment equipment kit is one of for you.Experiment Equipment Using , it is safe and durable