Discover the reliability of Nalge Nunc Cryogenic Vials, designed for optimal storage of biological samples. Made from durable polypropylene, these vials are sterile and feature an external thread with a secure screw cap, ensuring airtight sealing. Each vial is engineered to withstand extreme temperatures, making them perfect for cryogenic applications. With a capacity of 1.8 mL, they are ideal for preserving valuable samples without risk of contamination. Trust NALGENE for quality and performance in your laboratory needs. Perfect for researchers and scientists who demand the best in sample storage!