Cryo storage boxes are designed for storage of samples as low as -90°C. Hold both internal and external threaded cryogenic vials as well as storage vials. Autoclavable. These stackable boxes provide a small, space-efficient storage system within a freezer. Include a transparent hinged lid with a secure locking closure and a numbered and lettered grid for easy identification of contents. Designed to hold up to 100 vials in a 10 x 10 aray.