High quality Frozen Test Tube: Our frozen test tubes are made of premium pp plastic material, safe, non-toxic and sturdy. Resistant to high temperature to have sterilization and low temperature, can be placed under -80 Celsius(-176 Fahrenheit Degree) for a long time, perfect for lab sample storage.
Seal Cap Plastic Vials: With screw seal design, caps seal well, samples will be protected well and not volatilize.
Product Including: Our product includes 200 packs cryovial test tubes, enough quantity to satisfy the school and lab's need!
Size: Every test tube measures 1.8 inch long and 0.4 inch diameter, 2 ml capacity with clear scale marked, easy to read an use!
Suitable for many occasions: Our 2ml lab test tubes are not only great for school education, laboratory, and hospital, but also can be used to store your daily portable small objects, like pills, seeds, needles, etc.