Intended for the collection, transportation, and preservation of viruses, things like – chlamydia – mycoplasma, and ureaplasma. It contains antimicrobial agents to minimize bacterial and fungal contamination. It also contains glass beads to release and disperse sample into the medium during vortexing. Used in viral antigen detection test, PCR and rapid tests. Available in a 1ml or 3ml fill, the medium is stable at room temperature, meaning you don’t even have to refrigerate to keep your sample useable short-term. If you do refrigerate you can count on your sample staying useable for a very long time. Advanced kit design is easy to use and reliable. The self-centering cap is leakproof and facilitates easy swab removal and disposal. Premium medical grade plastic components to improve product shelf life. Shelf life – 18 months. The vials themselves are very sturdy, you’ll never have to worry about damage or breaking during transport. Made in the USA.