High-quality materials: 40 pieces test tubes made of plastic. It is a product made of high-quality transparent plastic and cork, which is and . It can be reused after washing. It is easy to carry and not easy to break, and it is more stable and than glass tubes. Good sealing: test tubes with cork 20 ml has a good seal. Tubes with corks provide a good dry storage to prevent spoilage of stored items. They insulate air and liquids and prevent contents from leaking for good storage. You can wash the tube to keep it clean, perfect for reuse and other purposes. [Multipurpose Test Tube] The small glass bottle with cork is transparent. The test tube can be handmade, homemade and so on; it can not only be used as a necklace pendant, perfume bottle and message bottle, but also as spice jar, oil glass, herb storage jar, mini candy glass, hanging decoration, lab experiment, wedding gift wait. [perfect Gift] The test tube with cork is an perfect choice for decoration lovers. You can in an