Elevate your laboratory experience with the Kimble/Kontes KIMAX Test Tubes. Crafted from high-quality borosilicate glass, these test tubes are designed for durability and reusability, making them an eco-friendly choice for your experiments. Each pack contains 72 test tubes, ensuring you have plenty on hand for various applications, from educational settings to professional labs. With a capacity of 18150, they are perfect for holding liquids, samples, or conducting reactions. Enjoy peace of mind knowing that these test tubes are resistant to thermal shock and chemical corrosion. Ideal for any scientist or educator!