Glass test tubes are designed to perform under a variety of experimental conditions. Capable of high temperature, as well as centrifugation, our test tubes are assured to serve in a wide array of biological and chemical sample preparations. They have a transparent appearance, are easy to observe, and ensure the effectiveness of centrifugal experiments. The wooden cork design reduces pollution caused by experimental operation. These tubes are widely used in laboratories and are suitable for pigments, chemical experiments, and biological experiments.