For storage from -155° to +121°C. Not for use in liquid-phase nitrogen. Permanent foam insert holds tubes securely. 337-910-80 holds 81 x 0.5 ml tubes. 337-910-82 holds 64 x 1.5 ml tubes. Removable transparent polycarbonate lid. CryoBox Racks, 337-930-30 series, accommodate these boxes for storage in mechanical or liquid nitrogen freezers. Dimensions: 13.3L x 13.3W x 5.1H cm.