This 2-inch cardboard freezer box is a storage essential for any lab and perfectly organizes your microtubes. The solid white hue offers a clean canvas that can be labeled, marked and decorated for easy identification. Printed on the sides and bottom of the box are letters and numbers to help with sample tracking. Each box comes with a hinged lid design to safeguard and store your samples securely. Its sturdy cardboard construction and water-repellent coating preserves the box's shape when stacked or stored in a freezer. Small drain holes are located at the bottom corners to remove any excess liquid nitrogen or water. An 81-place divider is included to hold standard microtubes such as 0.5, 1.5 and 2ml.