Ideal for light-sensitive specimens, this all-black storage box is suitable for use with 0.5, 1.5, and 2.0mL microtubes, as well as most other brands of cryogenic vials. Polypropylene box can accommodate several sizes of cryogenic vials, or tubes of similar diameters. The lid has an alphanumeric grid reference to aid with sample identification. Other matte surfaces are suitable for marking or labeling. The box base and lid have impressed rims for stacking.