๐๐ซ๐๐ฆ๐ข๐ฎ๐ฆ ๐๐๐ญ๐๐ซ๐ข๐๐ฅ---These 2ml plastic vials are made of durable polypropylene, these autoclavable cryovials can withstand repeated freezing and thawing without compromising their integrity. They can be placed to low temperature under -80โ(112ยฐF), high temperature up to 120โ(248ยฐF), a ideal Cryogenic Vials for lab application and storage; ๐๐๐๐ค-๐๐ซ๐จ๐จ๐--- Each small plastic vials with cap is equipped with an O-shaped silicone gasket and internal thread to prevent liquid leakage, which can ensure the safety of stored samples and ensure tightness, allows you to do experiments without worrying about leaks; ๐๐๐ฅ๐-๐๐ญ๐๐ง๐ ๐๐๐ฌ๐ข๐ ๐ง--- Each of 2ml plastic small cryovials featured with round bottom which can offer a self-supporting stand. Convenient for take out and storage. ๐๐๐ซ๐ ๐ ๐๐ซ๐ข๐ญ๐ข๐ง๐ ๐๐ซ๐๐ ๐๐ง๐ ๐๐ซ๐๐๐ข๐ฌ๐ ๐๐๐๐ฅ๐---These 2ml plastic cryotubes are designed with large writing area for sample identification, white printed precise graduations in 0.5ml increments for quickly knowing the capacity and taking out the sample vials from your needs to save time; ๐๐ก๐๐ญ ๐๐จ๐ฎ ๐๐ข๐ฅ๐ฅ ๐๐๐ญ---100Pcs 2ml small plastic vials(or 2ml Cryogenic Vials) with screw caps and 1 piece of 100 well storage box; ๐๐ข๐๐ ๐๐๐ง๐ ๐ ๐จ๐ ๐๐ฉ๐ฉ๐ฅ๐ข๐๐๐ญ๐ข๐จ๐ง๐ฌ--- Not only can be used for scientific experiments, but also can be used as spices, liquids, powders storage;