Withstand temperatures from -196° to +121°C (-321° to +250°F) On 25- and 81-place boxes, a colored plastic grid insert separates the cover from the base The 100-place boxes feature a colored base instead of a grid insert Transparent cover allows view of box contents and is keyed to the base to prevent misalignment All boxes are supplied with a vial-removal tool to facilitate removal of vials from a full box Autoclavable