Exquisite Material: The test tubes are made of high-quality glass bottle body and aluminum silver cap, smooth, comfortable to hand, sturdy, high transparency, you can easily read the contents, easy to clean, reusable and durable.
Screw Cap Design: The screw cap of the glass test tubes provides good sealing, making the test tubes glass easier to open and close, while preventing liquid leakage and having excellent moisture-proof and leak-proof properties. Able to absorb liquids, powders and solids.
Transparent Design: The glass tube is transparent, the contents can be seen at a glance, and it is highly decorative. It can perfectly isolate air and liquid, protect stored items from dust and moisture, and can become a good gift when combined with other accessories.