High-quality materials: 80 plastic test tubes. A product made of high-quality transparent plastic and cork, lightweight and . It can be reused after washing. It is easy to carry and not easy to break, and it is more stable and safer than glass tubes. Good sealing: The 20ml test tubes with stopper have a good sealing. The tubes with stoppers provide dry storage to prevent deterioration of stored items. isolate air and liquids and prevent the contents from leaking for storage. You can wash the tube to keep it clean, perfect for reuse and other purposes. [Multipurpose test tube] The small glass bottle with stopper is transparent. The test tube can be handmade, homemade, etc. It can not only be used as necklace pendant, perfume bottle and message bottle, but also as spice jar, glass, herb storage jar, mini candy glass, hanging decoration, laboratory experiment, wedding gift waiting. [Perfect Gift] The test tube with cork is a perfect choice for decoration lovers. You can pack it in an