● Made of durable cardboard with a waterproof coating and polypropylene dividers

● Hinged lid design ensures that lids are never misplaced or mixed up

● Alphanumeric labeling featured on the lid, bottom, and four sides enables quick and easy identification of samples

● Holds 0.5ml/1.5ml/2.0ml microtubes and cryogenic vials

● Suitable for liquid nitrogen freezing (after adding vent holes, and using cardboard dividers)