Polycarbonate outer container with HDPE closure and cryovial holder. When used as instructed with isopropyl alcohol and a mechanical freezer it will provide the 1°C critical cooling rate required for successful cell cryopreservation and recovery. The rigid vial holder, which accepts up to 18 x 1.2ml or 2ml cryovials (TP453-10 and TP453-13) prevents vials contacting the alcohol. Moulded numbers provide quick vial identification. The vial holder floats in a water bath for thawing. Overall 86 x 117mm H x D.