The glass test tubes with cork stoppers are for scientific experiments and plant propagation. Simply fill the test tubes with water and place your plant cuttings inside to encourage root growth. These test tubes can also be used in a lab setting for mixing chemicals or storing samples. Their clear design allows for easy observation of contents, making them ideal for educational purposes. Features -Color:Transparent -Material:Plastic -Size:6.00X1.20X1.20cm/2.36X0.47X0.47in -Disposable use: convenience and by preventing crosscontamination, making these test tubes ideal for singleuse applications in various settings -Variety of sizes: available in multiple specifications to cater to different experimental needs, providing flexibility and versatility in laboratory work -Leakproof design: equipped with sturdy stoppers to prevent leaks, ensuring the protection and integrity of your experimental samples -Durable plastic: made from durable plastic material that is resistant to breaking, ensuring use and reliability in various conditions -Packaging: comes in a pack of enough tubes, meeting the demands of largescale experiments and ensuring you always have enough test tubes on hand Package list: 20 Tubes