These small test tubes can be used to store liquid, medicine, powder and so on. With a cork stopper, this test tube has good sealing effect, meet your requirements better. These sample tubes are easy to take, works in the chemical and scientific research laboratory, let you own . Features -Color:Assorted Color -Material:Cork, -Size:15.00X2.00X2.00cm/5.89X0.79X0.79in -Made from sturdy materials, these small test tubes are designed to withstand extended use without deformation or breakage. -Featuring cork stopper designs, these test tubes provide an airtight seal, making them leak-proof to use. -The clear design of these testing tubes allows for easy identification of the contents inside, time and efforts saving. -Small vials are suitable for use in experiments, hospitals, and other applications that require to store some sample. -Compact size, these testing tubes are easy to transport, can be used in various fields, including chemistry and the pharmaceutical industry. Package list: 25 x testing tubes with cork stoppers