True North® Cryogenic Vial 2.0 mL Natural Color Caps

• Puncture/rupture-resistance polypropylene vial • Silicone lid seal & patented easy-grip faceted lid with ergonomic 1.5 twist to open and close • Flush cap saves space during storage • Printed writing area and graduations • Sterile packed in resealable bags. Includes traceable sterility certificate • Recommended for mechanical freezers and vapor phase LN2 (-196°) • US Patent No. D595424 • Disposable