Never lose track of your samples again with the Bulls-Eye Boxcardboard freezer box. The attached lid features a numbered grid that matches to the interior numbering system making it impossible to lose track or misplace micro tubes and cryovials. Each Bulls-Eye Boxfreezer box is made from durable recyclable cardboard and wrapped in a liquid resistant coating. These cardboard freezer boxes come fully assembled with either an 81 place (9x9) or 100 place (10x10) dividers pre-installed. Drainage slots (weep holes) on the bottom surface so they can be used with LN2 storage systems as well as -82 ULT freezers and below. Box Dimensions:5 1/4 x 5 1/4 x 2 inches to fit standard freezer racks Available in packs of five and in several colors.