Package Include--You will get 100pcs plastic vials, size about 13.5mm in diameter, 46mm high, Capacity: 1.8ml(0.06fl. oz). Sufficient quantity is enough to meet your needs. High Quality--The cryo tube is made of high-quality plastic material and can be used in most freezing experiments, and the transparent tube is easy to observe. Good Seal--The cap is equipped with a silicone gasket to prevent leakage. Even at the lowest storage temperature, sealing can be ensured, The sample in the tube will also be well preserved. Storage Box--These tubes are equipped with a storage box, which is very easy to use and store, can help you keep your experiments clean and organized. Wide Application--These small sample tubes can be used to hold liquids, solids, powders, seeds, pills, essential oils, perfumes, dyes, granular objects, etc. Suitable for hospitals, research laboratories and other places