If you want children to do some small chemistry experiments, then you miss our plastic test tubes. Can be used to store liquids, salts and other items. Suitable for professional and personal use. A test tube brush is provided for easy daily cleaning. Features - Material: Plastic. - Size: 6.00X1.20X1.20cm/2.36X0.47X0.47in. - Enough plastic test tubes, enough to meet your different needs, you can also share with your friends. - Each tube is equipped with a plug to ensure a good seal. In addition, it can be used for personal use, multi-function and multi-function. - Let you explain the knowledge in the books more specifically, making it easier for students to learn. - Easy to use and operate, novices, professionals, students, teachers or parents can use it. - details and good workmanship make it safer and more , and will provide you with good service. Package list: Plastic Test Tubes 1 brush