DescriptionAre you still looking for teaching equipment for your students to do some experiments?Then our test tubes are one of the best options for you.Plastic material, drop-proof, leak-proof, safe and durable.The perfect helper for chemistry teaching aids.Features- Material: Plastic, wood. - Size: Approx.6.50X1.20X1.20cm/2.55X0.47X0.47in. - Capacity: 3ml. - Enough plastic test tubes, enough for your different needs, you can also share with your friends.- Each tube is equipped with a stopper to ensure a good seal, plastic material, not easy to break.- Allows you to explain the knowledge in the book more concretely, improving your academic performance.- Easy to use and operate, it can be used by novices, professionals, students, teachers or parents.- Not only for storing reagents, but also great for storing bath salts, hydroponics, etc.