About this item
1.MATERIAL: Glass test tubes are made of borosilicate glass, heat resistant, and test tube is reusable after cleaning.
2.VERSITILITY: They can be used to store bath salts, spices, hot chocolate, powder, as well as liquid, breeding plants. Also, transparent test tubes are good choices for breeding plants and party decorating.
3.FURTHER APPLICATION: glass tubes cork stopper has a good seal. The bottom of the glass test tube is flat so it can be placed upright. ROTATE the lid to ensure tightness.
We have more than 18 years of glass production experience and 5,000 kinds of product inventory. We hope to listen to your voice and start the first step of cooperation together.