Introducing the Nalge Nunc Cryogenic Vials, designed for optimal sample storage at ultra-low temperatures. Made from durable polypropylene, these vials are both sterile and reliable, ensuring your samples remain uncontaminated. The external thread with a secure screw cap provides a leak-proof seal, making them perfect for cryogenic applications. Each vial is engineered to withstand extreme conditions, making them ideal for laboratories and research facilities. With a capacity of 2 mL, they are perfect for storing biological samples, cell cultures, and more. Trust Nalge Nunc for your cryogenic storage needs!