Our 1.8ml cryo vials with blue caps are designed for secure, long-term storage of biological samples at ultra-low temperatures. Constructed from high-quality, durable materials, these vials ensure the integrity of your samples, preventing contamination or leakage. The screw cap with an internal sealing ring provides an airtight, leak-proof seal, while the blue color allows easy identification. Ideal for use in laboratories and research facilities, these cryo vials are essential for preserving critical samples in cryogenic conditions.