For use with most common cryo vials (1.2 to 5ml) including: Nunc® #375418, Corning™ #430488, Simport® #T301, T308, T309, T310, and T311, Nalgene® #5000-0020, Greiner Cryo.s™, and similar vials commonly used for storage in vapor and liquid phase liquid nitrogen (-196°C / -321°F). Also suitable for dry ice transportation.