Nalgene PC Cryo Storage Box, Gray, Hold 81 Vials, 133mm Length x 133mm Width x 52mm Height (Case of 24) Durable, all-plastic cryoboxes for short- or long-term storage Keyed lids on plastic cryoboxes prevent misalignment Plastic boxes autoclavable for decontamination and usable at temperature range from -196C to +121C Printed grid on plastic lids for easy inventory management Available with dividers from 25 to 169 tube storage