These durable cryogenic storage boxes are made of extra strong polycarbonate. They are designed for use in temperatures between -190°C and +121°C. The boxes are autoclavable and accommodate 81 Cryovial® tubes. A transparent cover allows the user to view the contents of the box. The cover is keyed to the base to prevent misalignment. The surface is printed with a series of numbered (1-81) squares and accepts writing with markers. A unique color coding system uses colored plastic grids to separate the cover from the base of the box. Each storage box is supplied with an innovative vial picker to facilitate easy removal of the Cryovial® from the storage box.